Unique systems and methods for locking footwear

ABSTRACT

A unique system comprises opposite lace-receivers of a footwear, lacing device, the footwear&#39;s tongue, lace-end coupling, and lace-section coupling. To assemble the unique system, the lacing device is threaded through the opposite lace-receivers to define opposite lace sections, each of which extends between two lace-receivers on the same side. The lacing device&#39;s ends are threaded into the tongue and coupled by the lace-end coupling, to be hidden and guarded inside the tongue, and to preset predetermined fastening and unfastening tensions of the lacing device. After the assemblage, the lace-section coupling couples or uncouples the opposite lace sections, to fasten the footwear onto a foot after the foot was inserted into the footwear or to unfasten the footwear from a foot before the foot will be pulled out of the footwear, respectively.

REFERENCE TO PREVIOUSLY-FILED PROVISIONAL PATENT APPLICATION

[0001] Provisional Patent Application No. 60/224,580 was filed on Aug. 11, 2000 for unique fastening-unfastening systems and methods of the unique fastening-unfastening scope for footwear which is used with lace (lacing-type footwear).

TECHNICAL FIELD OF THE INVENTION

[0002] The present application applies for the unique fastening-unfastening systems and methods of the unique fastening-unfastening scope for footwear used with lace (lacing-type footwear). The lace can be elastic or non-elastic. Some unique features of the unique fastening-unfastening systems and methods are as follows:

[0003] 1) A unique fastening-unfastening system only needs to be assembled once together with a footwear, to perform a) and b) and/or c) and d):

[0004] a) to preset at least one predetermined fastening tension of the lace.

[0005] b) to preset at least one predetermined unfastening tension of the lace.

[0006] c) to attach the lace to the footwear and to at least one of at least one guard.

[0007] d) to hide and guard a part or the entirety of lace-ends of the lace and/or at least one lace-end coupling inside one or two of the at least one of the at least one guard.

[0008] For Example

[0009] The at least one of the at least one guard or the one or two guards can be separate from the tongue of the footwear, can be attached to or integrated to the tongue as part of the tongue, or can comprise the entire tongue.

[0010] After the assembly of the unique fastening-unfastening system together with the footwear, the unique fastening-unfastening system and the footwear can he applied to a foot as follows:

[0011] a) Every time the footwear is put on the foot:

[0012] Applying at least one of at least one Fastening Method to fasten the footwear onto the foot and to perform a) and b) and/or c) and d):

[0013] a) to eliminate the needs for adjusting and tying the opposite lace-ends of the lace.

[0014] b) to adjust the tension of the lace to one of the at least one predetermined fastening tension of the lace.

[0015] c) to fasten the at least one (for example, the tongue) of the at least one guard to the footwear.

[0016] d) to hide and guard or to keep hiding and guarding the part or the entirety of the lace-ends and/or the at least one lace-end coupling inside the one or two guards (for example, the tongue).

[0017] b) Every time the footwear is taken off the foot:

[0018] Applying at least one of at least one Unfastening Method to unfasten the footwear from the foot and to perform a) and h) and/or c) and d):

[0019] a) to eliminate the needs for untying and adjusting the opposite lace-ends of the lace.

[0020] b) to adjust the tension of the lace to one of the at least one predetermined unfastening tension of the lace.

[0021] c) to unfasten the at least one (for example, the tongue) of the at least one guard from the footwear.

[0022] d) to hide and guard or to keep hiding and guarding the part or the entirety of the lace-ends and/or the at least one lace-end coupling inside the one or two guards (for example, the tongue).

[0023] 2) A unique fastening-unfastening system can be adjusted, after the assembly of the unique fastening-unfastening system together with a footwear:

[0024] a) to preset at least one new predetermined fastening tension of the lace, and

[0025] b) to preset at least one new predetermined unfastening tension of the lace.

[0026] After the adjustment of the unique fastening-unfastening system, the unique fastening-unfastening system and the footwear can be applied to a foot as follows:

[0027] a) Every time the footwear is put on the foot:

[0028] the unique fastening-unfastening system works similarly as described above.

[0029] b) Every time the footwear is taken off the foot:

[0030] the unique fastening-unfastening system works similarly as described above.

[0031] For Example

[0032] A lace is made of elastic material, a unique fastening-unfastening system can be assembled once together with a footwear so that a foot can feel comfortable when wearing the footwear, without any undue uncomfortable feelings and without any undue pain, which are caused by the footwear squeezing the foot.

[0033] When the lace is stretched and therefore loses its tension after the lace has been used for a while, the unique fastening-unfastening system can be adjusted:

[0034] a) to preset at least one new predetermined fastening tension of the lace, and

[0035] b) to preset at least one new predetermined unfastening tension of the lace.

[0036] After the adjustment of the unique fastening-unfastening system, the unique fastening-unfastening system and the footwear can be applied to the foot as follows:

[0037] a) Every time the footwear is put on the foot:

[0038] the unique fastening-unfastening system works similarly as described above.

[0039] b) Every time the footwear is taken off the foot:

[0040] the unique fastening-unfastening system works similarly as described above.

BACKGROUND OF THE INVENTION

[0041] Footwear, which is used with lace (lacing-type footwear), is an important part of personal life. Accordingly, there are ever-increasing demands for convenience, appearance, and safety of footwear. An entire industry has been developing, full of products and services, trying to fulfill these demands. As the pace of life continues to accelerate and as financial and time pressures are felt everywhere, there are ever-increasing demands for unique fastening-unfastening systems and methods which have many unique advantages over all the prior arts heretofore. Some of these unique advantages are as follows:

[0042] 1) A unique fastening-unfastening system only needs to be assembled once together with a footwear, to perform a) and b) and/or c) and d):

[0043] a) to preset at least one predetermined fastening tension of the lace.

[0044] b) to preset at least one predetermined unfastening tension of the lace.

[0045] c) to attach the lace to the footwear and to at least one of at least one guard.

[0046] d) to hide and guard a part or the entirety of lace-ends of the lace and/or at least one lace-end coupling inside one or two of the at least one of the at least one guard.

[0047] For Example

[0048] The at least one of the at least one guard or the one or two guards can be separate from the tongue of the footwear, can be attached to or integrated to the tongue as part of the tongue, or can comprise the entire tongue.

[0049] After the assembly of the unique fastening-unfastening system together with the footwear, the unique fastening-unfastening system and the footwear can be applied to a foot as follows:

[0050] a) Every time the footwear is put on the foot:

[0051] Applying at least one of at least one Fastening Method to fasten the footwear onto the foot and to perform a) and b) and/or c) and d):

[0052] a) to eliminate the needs for adjusting and tying the opposite lace-ends of the lace.

[0053] b) to adjust the tension of the lace to one of the at least one predetermined fastening tension of the lace.

[0054] c) to fasten the at least one (for example, the tongue) of the at least one guard to the footwear.

[0055] d) to hide and guard or to keep hiding and guarding the part or the entirety of the lace-ends and/or the at least one lace-end coupling inside the one or two guards (for example, the tongue).

[0056] b) Every time the footwear is taken off the foot:

[0057] Applying at least one of at least one Unfastening Method to unfasten the footwear from the foot and to perform a) and b) and/or c) and d>:

[0058] a) to eliminate the needs for untying and adjusting the opposite lace-ends of the lace.

[0059] b) to adjust the tension of the lace to one of the at least one predetermined unfastening tension of the lace.

[0060] c) to unfasten the at least one (for example, the tongue) of the at least one guard from the footwear.

[0061] d) to hide and guard or to keep hiding and guarding the part or the entirety of the lace-ends and/or the at least one lace-end coupling inside the one or two guards (for example, the tongue).

[0062] 2) A unique fastening-unfastening system can be adjusted, after the assembly of the unique fastening-unfastening system together with a footwear:

[0063] a) to preset at least one new predetermined fastening tension of the lace, and

[0064] b) to preset at least one new predetermined unfastening tension of the lace

[0065] After the adjustment of the unique fastening-unfastening system, the unique fastening-unfastening system and the footwear can be applied to a foot as follows:

[0066] a) Every time the footwear is put on the foot:

[0067] the unique fastening-unfastening system works similarly as described above.

[0068] b) Every time the footwear is taken off the foot:

[0069] the unique fastening-unfastening system works similarly as described above.

[0070] For Example

[0071] A lace is made of elastic material, a unique fastening-unfastening system can be assembled once together with a footwear so that a foot can feel comfortable when wearing the footwear, without any undue uncomfortable feelings and without any undue pain, which are caused by the footwear squeezing the foot.

[0072] When the lace is stretched and therefore loses its tension after the lace has been used for a while, the unique fastening-unfastening system can be adjusted:

[0073] a) to preset at least one new predetermined fastening tension of the lace, and

[0074] b) to preset at least one new predetermined unfastening tension of the lace.

[0075] After the adjustment of the unique fastening-unfastening system, the unique fastening-unfastening system and the footwear can be applied to the foot as follows:

[0076] a) Every time the footwear is put on the foot:

[0077] the unique fastening-unfastening system works similarly as described above.

[0078] b) Every time the footwear is taken off the foot:

[0079] the unique fastening-unfastening system works similarly as described above.

[0080] 3) A unique fastening-unfastening system is highly easy and quick to use, looks highly aesthetic, and is highly safe.

[0081] 4) A unique fastening-unfastening system eliminates the problem of a footwear's tongue which moves from side to side and/or around when the footwear moves, causing the problem of throwing the footwear out of balance.

[0082] 5) A unique fastening-unfastening system eliminates the needs for adjusting elongated first and second lace-ends of a lace to lengthen them to increase the tension of the lace

[0083] 6) A unique fastening-unfastening system eliminates the needs for adjusting elongated first and second lace-ends of a lace to shorten them to decrease the tension of the lace.

[0084] 7) A unique fastening-unfastening system eliminates the needs for coupling elongated first and second lace-ends of a lace with each other when a footwear is put on a foot.

[0085] 8) A unique fastening-unfastening system eliminates the needs for uncoupling elongated first and second lace-ends of a lace from each other when a footwear is taken off a foot.

[0086] 9) A unique fastening-unfastening system eliminates the needs for tying elongated first and second lace-ends of a lace together into elongated bow-knot and tails when a footwear is put on a foot.

[0087] 10) A unique fastening-unfastening system eliminates the needs for untying elongated bow-knot and tails of a lace into elongated first and second lace-ends when a footwear is taken off a foot.

[0088] 11) A unique fastening-unfastening system eliminates exposing elongated bow-knot and tails, by hiding and guarding them inside, for example, the footwear's tongue, to eliminate the hazards of snagging, undoing, tripping, damage, and personal injury.

[0089] 12) A unique fastening-unfastening system eliminates exposing elongated first and second lace ends of a lace and at least one lace end coupling, by hiding and guarding them inside, for example, the footwear's tongue, to eliminate the hazards of snagging, undoing, tripping, damage, and personal injury.

[0090] 13) A unique fastening-unfastening system eliminates using any additional, highly cumbersome, highly unsighted, and highly hazardous devices used to fasten elongated bow-knot and tails in place or used to fasten elongated first and second lace-ends of a lace in place, to eliminate the hazards of snagging, undoing, tripping, damage, and personal injury.

[0091] 14) A unique fastening-unfastening system has no moving parts and is highly compact, highly safe, highly reliable, highly durable, highly simple, highly comfortable to wear, highly easy to be made, and therefore highly inexpensive. Therefore, it can be used for footwear of almost any size and for people of almost any age.

[0092] 15) A unique fastening-unfastening system applies interlocking methods to fasten the at least one of the at least one guard to the footwear and to fasten the footwear onto the foot. Therefore:

[0093] the harder the unfastening forces pull on the unique fastening-unfastening system to unfasten the at least one of the at least one guard from the footwear and to unfasten the footwear from the foot,

[0094] the more securely the unique fastening-unfastening system fastens the at least one of the at least one guard to the footwear and fastens the footwear onto the foot.

[0095] 16) A unique fastening-unfastening system is simple, and therefore can be operated easily by people of almost any age

[0096] 17) A unique fastening-unfastening system needs only one finger to be operated. A unique fastening-unfastening system, when fastening a footwear onto a foot, is capable of making itself look symmetric.

[0097] 18) When a unique fastening-unfastening system fastens at least one guard or at least one of the at least one guard to a footwear and fastens the footwear onto a foot (with first and second lace-ends of a lace and at least one lace-end coupling hidden and guarded inside, for example, the footwear's tongue), the unique fastening-unfastening system can lie completely flat on the footwear and can hug the footwear snugly. Therefore, the unique fastening-unfastening system looks highly aesthetic, is highly safe, and highly reduces the hazards of snagging, undoing, tripping, damage, and personal injury.

[0098] 19) By using a unique fastening-unfastening system, conventional, elongated bow-knot and tails, or tie elongated first and second lace-ends of a lace and at least one lace-end coupling can be partially or fully hidden and guarded inside, for example, the footwear's tongue.

[0099] Therefore, this partially or fully eliminates exposing the conventional, elongated bow-knot and tails, or the elongated first and second lace-ends and the at least one lace-end coupling;

[0100] Therefore, the lace:

[0101] a) can have any degree of stiffness,

[0102] b) can have a cross-section of any shape and size,

[0103] c) can be made of elastic or non-elastic material or a combination thereof,

[0104] d) can have uniform or not uniform cross-section or a combination thereof, and

[0105] e) can be straight, bent, waved, or helical or a combination of at least any two thereof.

[0106] 20) At least one element of a unique fastening-unfastening system can partially or fully be made of glow-in-the-dark material, fluorescent material, light-reflecting material, eye-catching material, or a combination of at least any two of these above materials so that, for example, a motorist can see the at least one element wore by a jogger at night, to avoid hitting the jogger. Therefore, the unique fastening-unfastening system can also serve as a safety system.

PRIOR ART

[0107] 1) All the prior arts heretofore have the same seriously hazardous problem of a footwear's loose tongue, even when a footwear's tongue has an elongated piece of material both ends of which are sewn to the tongue to define a hole therebetween for a lace to be threaded thereto, the tongue still being loose and still moving. Because the loose tongue, of all the prior arts heretofore, is not fastened to the footwear, therefore the loose tongue moves from side to side and/or, for example, around, up and down, etc. whenever the footwear moves. This problem highly throws the footwear out of balance, and therefore highly damages a foot, which has worn the footwear for some time.

[0108] Therefore, all the prior arts heretofore teach away from the unique fastening-unfastening systems and methods of the present application.

[0109] 2) All the prior arts heretofore have the same seriously hazardous problem of never hiding and never guarding the first and second lace ends of a lace and lace-end coupling(s), if any, inside the tongue of a footwear. Therefore, all the prior arts heretofore posing the hazards of snagging, undoing, damage, tripping, and personal injury.

[0110] Therefore, all the prior arts heretofore teach away from the unique fastening-unfastening systems and methods of the present application.

[0111] 3) A number of additional, highly cumbersome, highly unsighted, and highly hazardous devices have been introduced in:

[0112] the U.S. Pat. No. 4,291,439 filed Sep. 29, 1981; the U.S. Pat. No. 4,200,998 filed May 06, 1980;

[0113] the U.S. Pat. No. 5,042,119 filed Aug. 27, 1991; the U.S. Pat. No. 4,879,787 filed Nov. 14, 1989;

[0114] the U.S. Pat. No. 4,114,297 filed Sep. 19, 1978; the U.S. Pat. No. 4,766,682 filed Aug. 30, 1988;

[0115] the U.S. Pat. No. 4,571,856 filed Feb. 25, 1986; the U.S. Pat. No. 4,949,437 filed Aug. 21, 1990;

[0116] the U.S. Pat. No. 4,715,094 filed Dec. 29, 1987; the U.S. Pat. No. 3,908,238 filed Sep. 30, 1975; and the U.S. Pat. No. 4,571,854 filed Apr. 22 1983.

[0117] These patents teach that to fasten a shoe onto or to unfasten the shoe from a foot, every time the shoe is put onto or taken off the foot, respectively:

[0118] 1) first, assemble the system of the shoe, a lace, and an additional, highly cumbersome, highly unsighted, and highly hazardous device to attach the lace to the shoe and the additional, highly cumbersome, highly unsighted, and highly hazardous device;

[0119] 2) then, after the assembly:

[0120] a) to fasten the shoe onto the foot, every time the shoe is put on the foot, the following steps are applied:

[0121] adjusting elongated first and second lace-ends of the lace to lengthen them to increase the tension of the lace;

[0122] tying the elongated first and second lace-ends together into elongated bow-knot and tails;

[0123] fastening the elongated bow-knot and tails to the additional highly cumbersome, highly unsighted, and highly hazardous device; and

[0124] exposing the elongated bow-knot and tails and the additional, highly cumbersome, highly unsighted, and highly hazardous device.

[0125] b) to unfasten the shoe from the foot, every time the shoe is taken off the foot, the following steps are applied:

[0126] unfastening the elongated bow-knot and tails from the additional, highly cumbersome, highly unsighted, and highly hazardous device;

[0127] untying the elongated bow-knot and tails into the elongated first and second lace-ends;

[0128] adjusting the elongated first and second lace-ends to shorten them to decrease the tension of the lace; and

[0129] exposing the elongated first and second lace-ends and the additional, highly cumbersome, highly unsighted, and highly hazardous device;

[0130] Therefore, all these prior arts heretofore teach away from the unique fastening-unfastening systems and methods of the present application.

[0131] In addition, the additional, highly cumbersome, highly unsighted, and highly hazardous device does not perform any function to fasten the shoe's loose tongue to the shoe to prevent the shoe's loose tongue from moving from side to side and/or around when the shoe moves.

[0132] In addition, the elongated bow-knot and tails and the additional, highly cumbersome, highly unsighted, and highly hazardous device are exposed and therefore highly pose the hazards of snagging, undoing, damage, tripping, and personal injury.

[0133] In addition, the lace combined with the additional, highly cumbersome, highly unsighted, and highly hazardous device require more time and effort to be operated than the time and effort just the lace alone requires to be operated, to fasten the shoe onto or to unfasten the shoe from the foot.

[0134] In addition, the lace combined with the additional, highly cumbersome, highly unsighted, and highly hazardous device or just the lace alone require more time and effort to be operated than the time and effort a unique fastening-unfastening system of the present application requires to be operated, to fasten the shoe onto or to unfasten the shoe from the foot.

[0135] In addition, the more tightly the additional, highly cumbersome, highly unsighted, and highly hazardous device fastens the elongated bow-knot and tails in place, the tougher it is to unfasten the elongated bow-knot and tails from the additional, highly cumbersome, highly unsighted, and highly hazardous device.

[0136] Therefore, all these prior arts heretofore teach away from the unique fastening-unfastening systems and methods of the present application.

[0137] 4) Other prior arts use only a non-elastic lace which is tied into elongated bow-knot and tails to fasten a shoe onto a foot. The elongated bow-knot and tails are exposed and therefore highly pose the hazards of snagging, undoing, damage, tripping, and personal injury.

[0138] Therefore, all these prior arts heretofore teach away from the unique fastening-unfastening systems and methods of the present application.

[0139] 5) Other prior arts use helical elastic lace to fasten a shoe onto a foot. The elongated helical first and second lace-ends of the helical elastic lace are exposed, are always erected outwards away from the shoe, and therefore highly pose the hazards of snagging, undoing, damage, tripping, and personal injury. In addition, the helical elastic lace can not be straightened uniformly, and therefore looks highly asymmetric and highly unsighted.

[0140] Therefore, all these prior arts heretofore teach away from the unique fastening-unfastening systems and methods of the present application.

[0141] 6) Other prior arts use elastic laces, which are sewn onto a shoe to be fixed. Because these elastic laces are sewn onto the shoe to be fixed, therefore these elastic laces can not be adjusted. This causes a lot of undue uncomfortable feelings and undue pain for an extended period of time. These elastic laces will be stretched and lose their tension after having been used over an extended period of time. Therefore, in order for these elastic laces to have strong enough tension to fasten the shoe onto a foot after having been used over an extended period of time and having been stretched, the tension of these elastic laces, when brand-new, needs to be a lot stronger than needed. Therefore, when the elastic laces are brand-new, the elastic laces squeeze the shoe so hard, and therefore the shoe squeezes the foot so hard, way more than needed:

[0142] blocking the blood flow though the foot for an extended period of time,

[0143] making the foot feel highly uncomfortable for an extended period of time,

[0144] causing a lot of undue pain for an extended period of time, and

[0145] making it harder for the foot to move, for an extended period of time, until these elastic laces will have been used long enough to be stretched far enough to lose enough tension to not squeeze the shoe so hard so that, the shoe does not squeeze the foot so hard.

[0146] Therefore, all these prior arts heretofore teach away from the unique fastening-unfastening systems and methods of the present application.

OBJECTS AND ADVANTAGES OF THE INVENTION

[0147] The present application applies for the unique fastening-unfastening systems and methods of the unique fastening-unfastening scope for footwear used with lace (lacing-type footwear). The lace can be elastic or non-elastic.

[0148] The unique fastening-unfastening systems and methods of the present application teach away from all the prior arts heretofore. The unique fastening-unfastening systems and methods of the present application have many advantages over all the prior arts heretofore. Some of these advantages of the unique fastening-unfastening systems and methods of the present application are as follows:

[0149] 1) A unique fastening-unfastening system only needs to be assembled once together with a footwear, to perform a) and b) and/or c) and d):

[0150] a) to preset at least one predetermined fastening tension of the lace.

[0151] b) to preset at least one predetermined unfastening tension of the lace.

[0152] c) to attach the lace to the footwear and to at least one of at least one guard.

[0153] d) to hide and guard a part or the entirety of lace-ends of the lace and/or at least one lace-end coupling inside one or two of the at least one of the at least one guard.

[0154] For Example

[0155] The at least one of the at least one guard or the one or two guards can be separate from the tongue of the footwear, can be attached to or integrated to the tongue as part of the tongue, or can comprise the entire tongue.

[0156] After the assembly of the unique fastening-unfastening system together with the footwear, the unique fastening-unfastening system and the footwear can be applied to a foot as follows:

[0157] a) Every time the footwear is put on the foot

[0158] Applying at least one of at least one Fastening Method to fasten the footwear onto the foot and to perform a) and b) and/or c) and d):

[0159] a) to eliminate the needs for adjusting and tying the opposite lace-ends of the lace.

[0160] b) to adjust the tension of the lace to one of the at least one predetermined fastening tension of the lace.

[0161] c) to fasten the at least one (for example, the tongue) of the at least one guard to the footwear.

[0162] d) to hide and guard or to keep hiding and guarding the part or the entirety of the lace-ends and/or the at least one lace-end coupling inside the one or two guards (for example, the tongue).

[0163] b) Every time the footwear is taken off the foot:

[0164] Applying at least one of at least one Unfastening Method to unfasten the footwear from the foot and to perform a) and h) and/or c) and d):

[0165] a) to eliminate the needs for untying and adjusting the opposite lace-ends of the lace.

[0166] b) to adjust the tension of the lace to one of the at least one predetermined unfastening tension of the lace.

[0167] c) to unfasten the at least one (for example, the tongue) of the at least one guard from the footwear

[0168] d) to hide and guard or to keep hiding and guarding the part or the entirety of the lace-ends and/or the at least one lace-end coupling inside the one or two guards (for example, the tongue).

[0169] 2) A unique fastening-unfastening system can be adjusted, after the assembly of the unique fastening-unfastening system together with a footwear:

[0170] a) to preset at least one new predetermined fastening tension of the lace, and

[0171] b) to preset at least one new predetermined unfastening tension of the lace.

[0172] After the adjustment of the unique fastening-unfastening system, the unique fastening-unfastening system and the footwear n be applied to a foot as follows:

[0173] a) Every time the footwear is put on the foot;

[0174] the unique fastening-unfastening system works similarly as described above.

[0175] b) Every time the footwear is taken off the foot:

[0176] the unique fastening-unfastening system works similarly as described above.

[0177] For Example

[0178] A lace is made of elastic material, a unique fastening-unfastening system can be assembled once together with a footwear so that a foot can feel comfortable when wearing the footwear, without any undue uncomfortable feelings and without any undue pain, which are caused by the footwear squeezing the foot.

[0179] When the lace is stretched and therefore loses its tension after the lace has been used for a while, the unique fastening-unfastening system can be adjusted:

[0180] a) to preset at least one new predetermined fastening tension of the lace, and

[0181] b) to preset at least one new predetermined unfastening tension of the lace.

[0182] After the adjustment of the unique fastening-unfastening system, the unique fastening-unfastening system and the footwear can be applied to the foot as follows:

[0183] a) Every time the footwear is put on the foot

[0184] the unique fastening-unfastening system works similarly as described above.

[0185] b) Every time the footwear is taken off the foot:

[0186] the unique fastening-unfastening system works similarly as described above.

[0187] 3) A unique fastening-unfastening system is highly easy and quick to use, looks highly aesthetic, and is highly safe.

[0188] 4) A unique fastening-unfastening system eliminates the problem of a footwear's tongue which moves from side to side and/or around when the footwear moves, causing the problem of throwing the footwear out of balance.

[0189] 5) A unique fastening-unfastening system eliminates the needs for adjusting elongated first and second lace-ends of a lace to lengthen them to increase the tension of the lace,

[0190] 6) A unique fastening-unfastening system eliminates the needs for adjusting elongated first and second lace-ends of a lace to shorten them to decrease the tension of the lace.

[0191] 7) A unique fastening-unfastening system eliminates the needs for coupling elongated first and second lace-ends of a lace with each other when a footwear is put on a foot.

[0192] 8) A unique fastening-unfastening system eliminates the needs for uncoupling elongated first and second lace ends of a lace from each other when a footwear is taken off a foot.

[0193] 9) A unique fastening-unfastening system eliminates the needs for tying elongated first and second lace-ends of a lace together into elongated how-knot and tails when a footwear is put on a foot.

[0194] 10) A unique fastening-unfastening system eliminates the needs for untying elongated bow-knot and tails of a lace into elongated first and second lace-ends when a footwear is taken off a foot.

[0195] 11) A unique fastening-unfastening system eliminates exposing elongated bow-knot and tails, by hiding and guarding them inside, for example, the footwear's tongue, to eliminate the hazards of snagging, undoing, tripping, damage, and personal injury.

[0196] 12) A unique fastening-unfastening system eliminates exposing elongated first and second lace-ends of a lace and at least one lace-end coupling, by hiding and guarding them inside, for example, the footwear's tongue, to eliminate the hazards of snagging, undoing, tripping, damage, and personal injury.

[0197] 13) A unique fastening-unfastening system eliminates using any additional, highly cumbersome, highly unsighted, and highly hazardous devices used to fasten elongated bow-knot and tails in place or used to fasten elongated first and second lace-ends of a lace in place, to eliminate the hazards of snagging, undoing, tripping, damage, and personal injury.

[0198] 14) A unique fastening-unfastening system has no moving parts and is highly compact, highly safe, highly reliable, highly durable, highly simple, highly comfortable to wear, highly easy to be made, and therefore highly inexpensive. Therefore, it can be used for footwear of almost any size and for people of almost any age.

[0199] 15) A unique fastening-unfastening system applies interlocking methods to fasten the at least one of the at least one guard to the footwear and to fasten the footwear onto the foot. Therefore:

[0200] the harder the unfastening forces pull on the unique fastening-unfastening system to unfasten the at least one of the at least one guard from the footwear and to unfasten the footwear from the foot,

[0201] the more securely the unique fastening-unfastening system fastens the at least one of the at least one guard to the footwear and fastens the footwear onto the foot.

[0202] 16) A unique fastening-unfastening system is simple, and therefore can be operated easily by people of almost any age.

[0203] 17) A unique fastening-unfastening system needs only one finger to be operated. A unique fastening-unfastening system, when fastening a footwear onto a foot, is capable of making itself look symmetric.

[0204] 18) When a unique fastening-unfastening system fastens at least one guard or at least one of the at least one guard to a footwear and fastens the footwear onto a foot (with first and second lace-ends of a lace and at least one lace-end coupling hidden and guarded inside, for example, the footwear's tongue), the unique fastening-unfastening system can lie completely flat on the footwear and can hug the footwear snugly. Therefore, the unique fastening-unfastening system looks highly aesthetic, is highly safe, and highly reduces the hazards of snagging, undoing, tripping, damage, and personal injury.

[0205] 19) By using a unique fastening-unfastening system, conventional, elongated bow-knot and tails, or the elongated first and second lace-ends of a lace and at least one lace-end coupling can be partially or fully hidden and guarded inside, for example, the footwear's tongue.

[0206] Therefore, this partially or fully eliminates exposing the conventional, elongated bow-knot and tails, or the elongated first and second lace ends and the at least one lace-end coupling;

[0207] Therefore, the lace:

[0208] a) can have any degree-of stiffness,

[0209] b) can have a cross-section of any shape and size,

[0210] c) can be made of elastic or nonelastic material or a combination thereof,

[0211] d) can have uniform or not uniform cross-section or a combination thereof, and

[0212] e) can be straight, bent, waved, or helical or a combination of at least any two thereof.

[0213] 20) At least one element of a unique fastening-unfastening system can partially or fully be made of glow-in-the-dark material, fluorescent material, light-reflecting material, eye-catching material, or a combination of at least any two of these above materials so that, for example, a motorist-can see the at least one element wore by a jogger at night, to avoid hitting the jogger. Therefore, the unique fastening-unfastening system can also serve as a safety system.

[0214] Other objects and advantages of the unique fastening-unfastening systems and methods of the present application will become apparent from the specification and drawings.

SUMMARY OF THE INVENTION

[0215] The present application applies for the unique fastening-unfastening systems and methods of the unique fastening-unfastening scope for footwear used with lace (lacing-type footwear).The lace can be elastic or non-elastic.

[0216] 1) A unique fastening-unfastening system only needs to be assembled once together with a footwear, to perform a) and h) and/or c) and d):

[0217] a) to preset at least one predetermined fastening tension of the lace.

[0218] b) to preset at least one predetermined unfastening tension of the lace.

[0219] c) to attach the lace to the footwear and to at least one of at least one guard.

[0220] d) to hide and guard a part or the entirety of lace-ends of the lace and/or at least one lace-end coupling inside one or two of the at least one of the at least one guard.

[0221] For Example

[0222] The at least one of the at least one guard or the one or two guards can be separate from the tongue of the footwear, can be attached to or integrated to the tongue as part of the tongue or can comprise the entire tongue.

[0223] After the assembly of the unique fastening-unfastening system together-with the footwear, the unique fastening-unfastening system and the footwear can be applied to a foot as follows:

[0224] a) Every time the footwear is put on the foot;

[0225] Applying at least one of at least one Fastening Method to fasten the footwear onto the foot and to perform a) and h) and/or c) and d):

[0226] a) to eliminate the needs for adjusting and tying the opposite lace-ends of the lace.

[0227] b) to adjust the tension of the lace to one of the at least one predetermined fastening tension of the lace.

[0228] c) to fasten the at least one (for example, the tongue) of the at least one guard to the footwear.

[0229] d) to hide and guard or to keep hiding and guarding the part or the entirety of the lace-ends and/or the at least one lace-end coupling inside the one or two guards I for example, the tongue).

[0230] b) Every time the footwear is taken off the foot;

[0231] Applying at least one of at least one Unfastening Method to unfasten the footwear from the foot and to perform a) and b) and/or c) and d):

[0232] a) to eliminate the needs for untying and adjusting the opposite lace-ends of the lace.

[0233] b) to adjust the tension of the lace to one of the at least one predetermined unfastening tension of the lace.

[0234] c) to unfasten the at least one (for example, the tongue) of the at least one guard from the footwear.

[0235] d) to hide and guard or to keep hiding and guarding the part or the entirety of the lace-ends and/or the at least one lace-end coupling inside the one or two guards (for example, the tongue).

[0236] 2) A unique fastening-unfastening system can be adjusted, after the assembly of the unique fastening-unfastening system together with a footwear,

[0237] a) to preset at least one new predetermined fastening tension of the lace, and

[0238] b) to preset at least one new predetermined unfastening tension of the lace.

[0239] After the adjustment of the unique fastening-unfastening system, the unique fastening-unfastening system and the footwear can be applied to a foot as follows:

[0240] a) Every time the footwear is put on the foot.

[0241] the unique fastening-unfastening system works similarly as described above.

[0242] b) Every time the footwear is taken off the foot:

[0243] the unique fastening-unfastening system works similarly as described above.

[0244] For Example

[0245] A lace is made of elastic material, a unique fastening-unfastening system can be assembled once together with a footwear so that a foot can feel comfortable when wearing the footwear, without any undue uncomfortable feelings and without any undue pain, which are caused by the footwear squeezing the foot.

[0246] When the lace is stretched and therefore loses its tension after the lace has been used for a while, the unique fastening-unfastening system can be adjusted:

[0247] a) to preset at least one new predetermined fastening tension of the lace, and

[0248] b) to preset at least one new predetermined unfastening tension of the lace.

[0249] After the adjustment of the unique fastening-unfastening system, the unique fastening-unfastening system and the footwear can be applied to the foot as follows:

[0250] a) Every time the footwear is put on the foot:

[0251] the unique fastening-unfastening system works similarly as described above.

[0252] b) Every time the footwear is taken off the foot:

[0253] the unique fastening-unfastening system works similarly as described above.

BRIEF DESCRIPTION OF DRAWINGS

[0254]FIG. 1 illustrates a perspective view of a guard.

[0255]FIG. 2 illustrates a perspective view of the guard attached to a shoe lace.

[0256] FIGS. 3, 4A-4F illustrate unique fastening-unfastening methods used to interlock opposite lace sections.

[0257] FIGS. 4G, 5A-5C illustrate how the guard can be used up side down.

[0258] FIGS. 6A-6C illustrate how the guard can be used with opposite lace-receivers of holes, rings, loops, or the like.

[0259]FIGS. 7 and 8 illustrate different ways to lace a shoe.

[0260] FIGS. 9A-9E, 10, 11, 12A, and 12B illustrate equivalents of the guard.

[0261]FIGS. 13A and 13R illustrate a guard with a relief or an inscription.

[0262] FIGS. 14A-14C illustrate equivalent ways to tie the lace-ends of the shoe lace together or separately.

[0263] FIGS. 15A-15D illustrate a guard and a shoe tongue both made one single unit.

[0264] FIGS. 16A-16I illustrate equivalents of the unique fastening-unfastening methods and the guard.

[0265] FIGS. 17A-17E illustrate variations of the combination of opposite lace-receivers and at least one guard.

[0266] FIGS. 17F-17I illustrate additional equivalents of the guard.

[0267] FIGS. 18A-18D illustrate additional equivalent of the unique fastening-unfastening method.

[0268] FIGS. 19A-19E illustrate additional equivalents of the unique fastening-unfastening method and the guard and how to use a plurality of guards with the shoe lace.

[0269]FIGS. 20A illustrates opposite lace-receivers, each in the form of a book having a bent tip and a preventing device.

[0270]FIGS. 20B illustrates how to use one guard to preset two independent fastening tensions of the shoe lace, at the same time.

[0271] FIGS. 20C-20N illustrate additional equivalents of the unique fastening-unfastening system, equivalents of the shoe tongue, and equivalent ways to hide and guard the lace ends inside the shoe tongue.

[0272] FIGS. 20O-20Q illustrate additional equivalents of the unique fastening-unfastening system.

[0273]FIGS. 20R and 20S illustrate equivalent ways to tie the lace-ends of the shoe lace together.

[0274] FIGS. 20T-20Y illustrate additional equivalents of the unique fastening-unfastening system.

[0275]FIG. 21A illustrates a lace which can be threaded through or hooked on some or all of lace-receivers.

[0276]FIG. 21B illustrates a resilient equivalent of lace-section coupling.

[0277]FIG. 21C illustrates additional equivalent of the unique fastening-unfastening system.

[0278]FIG. 21D illustrates an equivalent of lace-end coupling.

FIRST EMBODIMENTS FIRST EXAMPLE

[0279]FIGS. 1 and 2 illustrate a unique fastening-unfastening system for fastening a guard 60 to a shoe 82 and for fastening shoe 82 onto a foot Shoe 82 comprises a flap 77, a flap 78, and a shoe tongue 80. The structure and function of the unique fastening-unfastening system and the unique fastening-unfastening methods are as follows:

[0280] Structure

[0281] The unique fastening-unfastening system comprises:

[0282] A guarding device named guard 60. Guard 60 comprises a flat round ceiling 61, a flat round base 62, and a partially-surrounding curved wall 63. Base 62 has an opening 66 extending from one side of base 62, through base 62, and to the other side of base 62. Wall 63 is integrated to ceiling 61 and base 62 to define a recess 64A and an opening 64B therebetween. Opening 64B is at the edges of ceiling 61, base 62, and wall 63. Recess 64A communicate with openings 64B and 66;

[0283] A lacing device named lace 69. Lace 69 is made of elastic or non-elastic material, has a predetermined length. Lace 69 has opposite lace-ends 67 and 68, opposite lace sections 71 and 72, and opposite lace sections 73 and 74;

[0284] Opposite fastening gaps 70A and 70B

[0285] A lace-end coupling named knot 86. Lace ends 67 and 68 are tied together into knot 86 and tails so that, knot 86 couples lace-ends 67 and 68.

[0286] Two opposite lace-receivers named opposite hooks 75 and 76. Hooks 75 and 76 are made of plastic and sewn to opposite flaps 77 and 78, respectively, at predetermined locations thereon; and

[0287] A plurality of opposite lace-receivers named opposite holes 83 and 84. Holes 83 and 84 are cut into and along opposite flaps 77 and 78, respectively, below hooks 75 and 76, respectively, at predetermined locations thereon.

[0288] 2) Function

[0289] The unique fastening-unfastening system functions as follows:

[0290] Guard 60 functions as a combination of;

[0291] a) a hiding-guarding device to hide and guard knot 86 and tails, and

[0292] b) a lace-section coupling to couple and to uncouple lace sections 73 and 74;

[0293] Recess 64A is for storing knot 86 and tails;

[0294] Opening 66 and opening 64B are for lace-ends 67 and 68 to be threaded therethrough and are for reducing the weight of guard 60;

[0295] Lace 69 is for attaching shoe 82 and guard 60 together;

[0296] Lace ends 67 and 68 are for being threaded through opening 66, into recess 64A, and through opening 64B to get out of guard 60. Then, lace-end 67 and lace-end 68 are tied together into knot 86 and tails;

[0297] Knot 86 is for coupling lace-ends 67 and 68 to preset the at least one predetermined fastening tension of lace 69, to preset the at least one predetermined unfastening tension of lace 69, to attach lace 69 to shoe 82 and to guard 60.

[0298] Knot 86 and tails are for being threaded into recess 64A to be hidden and guarded inside guard 60.

[0299] (Because lace 69 is attached to guard 60, therefore, when the unique fastening-unfastening system fastens shoe 82 onto the foot, the unique fastening-unfastening system fastens lace 69 to shoe 82, and therefore fastens guard 60 to shoe 82).

[0300] (Because, guard 60 only needs to hide knot 86 and tails without any elongated bow-knot and without any elongated tails, therefore guard 60 can be made highly compact. For example, the diameters of ceiling 61 and base 62 can be less than half an inch (½″) and the height of wall 63 can be less than one fourth of an inch (¼″));

[0301] Lace sections 71 and 72 are for being hooked on hooks 75 and 76;

[0302] Lace sections 73 and 74 are for being hooked on guard 60;

[0303] Hooks 75 and 76 function as:

[0304] a lace-section coupling to couple and to uncouple lace sections 71 and 72; and

[0305] Holes 83 and 84 are for lace 69 to be threaded therethrough to attach lace 69 to shoe 82.

[0306] 3) Assembly Method

[0307] The unique fastening-unfastening system only needs to be assembled once together with shoe 82:

[0308] a) to preset the at least one predetermined fastening tension of lace 69,

[0309] b) to preset the at least one predetermined unfastening tension of lace 69,

[0310] c) to attach lace 69 to shoe 82 and to guard 60, and

[0311] d) to hide and guard knot 86 and tails inside guard 60.

[0312] Referring to FIGS. 1, 2, and 3, the unique fastening-unfastening system only needs to be assembled once together with shoe 82, by performing the following steps:

[0313] a) Threading lace 69 through holes 83 and 84;

[0314] b) Threading lace-ends 67 and 68 through opening 66, into recess 64A, and through opening 64B;

[0315] c) Tying lace-ends 67 and 68 together into knot 86 and tails to couple lace-ends 67 and 68

[0316] to preset the at least one predetermined fastening tension of lace 69,

[0317] to preset the at least one predetermined unfastening tension of lace 69,

[0318] to attach lace 69 to shoe 82 and to guard 60;

[0319] d) Threading knot 86 and tails back through opening 64B and into recess 64A

[0320] to hide and guard knot 86 and tails completely inside guard 60.

[0321] 4) Operational Methods

[0322] After the assembly of the unique fastening-unfastening system together with shoe 82, only one finger is needed to operate the unique fastening-unfastening system as follows:

[0323] a) EVERY TIME SHOE 82 IS PUT ON THE FOOT:

[0324] Shoe 82 can be quickly put on the foot by simply applying the following two steps 1) and 2):

[0325] 1) Inserting the foot into shoe 82.

[0326] 2) Applying at least one of the following unique Fastening Methods 1, 2, 3, 4, 5, 6, 7, and 8 to fasten shoe 82 onto the foot and:

[0327] a) to eliminate the needs for adjusting and tying lace-ends 67 and 68,

[0328] h) to adjust the tension of lace 69 to one of the at least one fastening tension,

[0329] c) to fasten guard 60 to shoe 82, and

[0330] d) to keep hiding and guarding knot 86 and tails inside guard 60.

[0331] The unique Fastening Methods 1, 2, 3, 4, 5, 6, 7, and 8 are as follows:

[0332] Fastening Method 1

[0333] (Referring to FIGS. 3 and 4A) pulling and coupling lace sections 71 and 72 to lengthen and interlock them (by hooking lace sections 71 and 72 on hooks 75 and 76, respectively) (FIG. 3 results in FIG. 4A)

[0334] Fastening Method 2

[0335] (Referring to FIGS. 4A, 4B and 4C) From the result of Fastening Method 1, in FIG. 4A, pulling and coupling lace sections 73 and 74 to lengthen and interlock them (by hooking lace sections 73 and 74, in the directions of arrows 87A and 87B, respectively, into fastening gaps 70B and 70A, respectively, and on guard 60) (FIG. 4A results in FIG. 4C).

[0336] Fastening Method 3

[0337] (Referring to FIGS. 4A, 4B, and 4D) applying Fastening Method 2 and the step of twisting lace sections 73 and 74 (in the directions of arrows 89A and 89B, respectively) (FIG. 4A results in FIG. 4D).

[0338] Fastening Method 4

[0339] (Referring to FIGS. 3 and 4E) pulling and coupling lace sections 71 and 72 to lengthen and interlock them (by hooking lace sections 71 and 72 on hooks 76 and 75, respectively) (FIG. 3 results in FIG. 4E).

[0340] Fastening Method 5

[0341] (Referring to FIGS. 3 and 4F) applying Fastening Method 4 and the step of twisting lace sections 71 and 72 (FIG. 3 results in FIG. 4F)

[0342] Fastening Method 6

[0343] applying Fastening Method 1 and the step of twisting lace sections 71 and 72.

[0344] Fastening Method 7

[0345] From the result of Fastening Method 6, pulling and coupling lace sections 73 and 74 to lengthen and interlock them (by hooking lace sections 73 and 74, in the directions of arrows 87A and 87B, respectively, into fastening gaps 70B and 70A, respectively, and on guard 60).

[0346] Fastening Method 8

[0347] applying Fastening Method 7 and the step of twisting lace sections 73 and 74.

[0348] b) EVERY TIME SHOE 82 IS TAKEN OFF THE FOOT:

[0349] Shoe 82 can be quickly taken off the foot by simply applying the following two steps 1) and 2):

[0350] 1) Applying at least one of the following unique Unfastening Methods 1 and 2 to unfasten shoe 82 from the foot and:

[0351] a) to eliminate the needs for untying and adjusting lace-ends 67 and 68,

[0352] b) to adjust the tension of lace 69 to one of the at least one unfastening tension,

[0353] c) to unfasten guard 60 from shoe 82, and

[0354] d) to keep hiding and guarding knot 86 and tails inside guard 60.

[0355] The unique Unfastening Methods 1 and 2 are as follows:

[0356] Unfastening Method 1

[0357] uncoupling lace sections 73 and 74 to unlock and shorten them (by unhooking lace sections 73 and 74 from guard 60).

[0358] Unfastening Method 2

[0359] uncoupling lace sections 71 and 72 to unlock and shorten them (by unhooking lace sections 71 and 72 from hooks 75 and 76)

[0360] 2) Pulling the foot out of shoe 82.

Unique Features

[0361] The unique fastening-unfastening system and methods above offer many unique important features which are advantageous over all the prior arts heretofore. Some of these unique important features are as follows:

[0362] 1) The unique fastening-unfastening system only needs to be assembled once together with shoe 82:

[0363] a) to preset the at least one predetermined-fastening tension,

[0364] b) to preset the at least one predetermined unfastening tension,

[0365] c) to attach lace 69 to shoe 82 and to guard 60, and

[0366] d) to hide and guard knot 86 and tails inside guard 60.

[0367] After the assembly of the unique fastening-unfastening system together with shoe 82, the unique fastening-unfastening system and shoe 82 can be applied to the foot as follows:

[0368] a) Every time shoe 82 is put on the foot:

[0369] Applying at least one of the unique Fastening Methods 1, 2, 3, 4, 5, 6, 7, and 8 to fasten shoe 82 onto the foot and:

[0370] a) to eliminate the needs for adjusting and tying lace-ends 61 and 68,

[0371] b) to adjust the tension of lace 69 to one of the at least one fastening tension,

[0372] c) to fasten guard 60 to shoe 82, and

[0373] d) to keep hiding and guarding knot 86 and tails inside guard 60.

[0374] b) Every time shoe 82 is taken off the foot:

[0375] Applying at least one of the unique Unfastening Methods 1 and 2 to unfastens shoe 82 from the foot and:

[0376] a) to eliminate the needs for untying and adjusting lace-ends 67 and 68,

[0377] b) to adjust the tension of lace 69 to one of the at least one unfastening tension,

[0378] c) to unfasten guard 60 from shoe 82, and

[0379] d) to keep hiding and guarding knot 86 and tails inside guard 60.

[0380] 2) The unique fastening-unfastening system can be adjusted, after the assembly of the unique fastening-unfastening system together with shoe 82.

[0381] a) to preset at least one new predetermined fastening tension of lace 69, and

[0382] b) to preset at least one new predetermined unfastening tension of lace 69.

[0383] After the adjustment of the unique fastening-unfastening system, the unique fastening-unfastening system and shoe 82 can be applied to the foot as follows;

[0384] a) Every time shoe 82 is put on the foot:

[0385] the unique fastening-unfastening system works similarly as described above.

[0386] b) Every time shoe 82 is taken off the foot:

[0387] the unique fastening-unfastening system works similarly as described above.

[0388] For Example

[0389] Lace 69 is made of elastic material, the unique fastening-unfastening system can be assembled once together with shoe 82 so that the foot can feel comfortable when wearing shoe 82 without any undue uncomfortable feelings and without any undue pain. When lace 69 is stretched and therefore loses its tension after having been used for a while, the unique fastening unfastening system can be adjusted:

[0390] a) to preset at least one new predetermined fastening tension of lace 69, and

[0391] b) tow preset at least one new predetermined unfastening tension of lace 69.

[0392] After the adjustment of the unique fastening-unfastening system, the unique fastening unfastening system and shoe 82 can be applied to the foot as follows:

[0393] a) Every time shoe 82 is put on the foot;

[0394] the unique fastening unfastening system works similarly as described above.

[0395] b) Every time shoe 82 is taken off the foot:

[0396] the unique fastening-unfastening system works similarly as described above.

[0397] 3) The unique fastening-unfastening system is highly easy and quick to use, looks highly aesthetic, and is highly safe.

[0398] 4) The unique fastening-unfastening system eliminates the problem of guard 60 which moves from side to side and/or art when shoe 82 moves.

[0399] 5) The unique fastening-unfastening system eliminates the needs for adjusting elongated lace ends 67 a 68 to lengthen them to increase the tension of lace 69.

[0400] 6) The unique fastening-unfastening system eliminates the needs for adjusting elongated lace ends 67 and 68 to shorten them to decrease the tension of lace 69.

[0401] 7) The unique fastening-unfastening system eliminates the needs for coupling elongated lace ends 67 and 68 with each other when shoe 82 is put on the foot.

[0402] 8) The unique fastening-unfastening system eliminates the needs for uncoupling elongated lace ends 67, and 68 from each other when shoe 82 is taken off the foot.

[0403] 9) The unique fastening-unfastening system eliminates the needs for tying elongated lace ends 67 and 68 together into bow-knot 86 and tails when shoe 82 is put on the foot.

[0404] 10) The unique fastening-unfastening system eliminates the needs for untying bow-knot 86 and tails into elongated lace-ends 67 and 68 when shoe 82 is taken off the foot.

[0405] 11) The unique fastening-unfastening system eliminates exposing bow-knot 86 and tails, by hiding and guarding them inside guard 60, to eliminate the hazards of snagging, untying, tripping, damage, and personal injury.

[0406] 12) The unique fastening-unfastening system eliminates exposing elongated lace ends 67 and 68 and any at least one lace-end coupling, by hiding and guarding them inside guard 60, to eliminate the hazards of snagging, undoing, tripping, damage, and personal injury.

[0407] 13) The unique fastening-unfastening system eliminates using any additional, highly cumbersome, highly unsighted, and highly hazardous devices used to fasten bow-knot 86 and tails in place or used to fasten lace ends 67 and 68 in place, to eliminate the hazards of snagging, undoing, tripping, damage, and personal injury.

[0408] 14) The unique fastening-unfastening system has no moving parts and is highly compact, highly safe, highly reliable, highly durable, highly simple, highly comfortable to wear, highly easy to be made, and therefore highly inexpensive. Therefore, it can be used for footwear of almost any size and for people of almost any age.

[0409] 15) The unique fastening-unfastening system applies interlocking methods to fasten guard 60 to shoe 82 and to fasten she 82 onto the foot. Therefore:

[0410] the harder the unfastening forces pull on the unique fastening-unfastening system to unfasten guard 60 from shoe 82 and to unfasten shoe 82 from the foot.

[0411] the more securely the unique fastening-unfastening system fastens guard 60 to shoe 82 and fastens shoe 82 onto the foot.

[0412] 16) The unique fastening-unfastening system is simple, and therefore can be operated easily by people of almost any age.

[0413] 17) The unique fastening-unfastening system needs only one ringer to be operated. A unique fastening-unfastening system, when fastening a footwear onto a foot, is capable of making itself look symmetric.

[0414] 18) When the unique fastening-unfastening system fastens guard 60 to shoe 82 and fastens shoe 82 onto the foot (with knot 86 a tails hidden and guarded inside guard 60), the unique fastening-unfastening system can lie completely flat on shoe 82 and can hug shoe 82 snugly. Therefore, the unique fastening-unfastening system looks highly aesthetic, is highly safe, and highly reduces the hazards of snagging, undoing, tripping, damage, and personal injury.

[0415] 19) By using a unique fastening-unfastening system, knot 86 and tails can be fully hidden and guarded inside guard 60.

[0416] Therefore, this fully eliminates exposing knot 86 and tails.

[0417] Therefore, lace 69:

[0418] a) can have any degree of stiffness,

[0419] b) can have a cross-section of any shape and size,

[0420] c) can be made of elastic or non-elastic material or a combination thereof,

[0421] d) can have uniform or not uniform cross-section or a combination thereof, and

[0422] e) can be straight, bent, waved, or helical or a combination of at least any two thereof

[0423] 20) At least one element of the unique fastening-unfastening system can partially or fully be made of glow-in-the-dark material, fluorescent material, light-reflecting material, eye-catching material, or a combination of at least any two of these above materials so that, for example, a motorist can see the at least one element of the unique fastening-unfastening system wore by a jogger at night, to avoid hitting the jogger. Therefore, the unique fastening-unfastening system can also serve as a safety system.

Equivalents, Variations, and Ramifications

[0424] 1) Each of opposite lace sections extends from one lace-receiver of one of opposite flaps to another lace-receiver of the same one of the opposite flaps or to another one of opposite lace sections.

[0425] For example, lace sections 73 in FIG. 4A extends between two lace-receivers of flap 77 and lies on only one side of flap 77.

[0426] For another example, lace section 73 in FIG. 4G extends between two lace-receivers of flap 77 and lies on both sides 30 and 31 of flap 77.

[0427] For another example, lace section 71 in FIG. 4G extends between one lace-receiver of flap 77

[0428] 2) A guard can be used in any position, for example, up side down, down side up, or on its side.

[0429] For example, FIG. 4G illustrates guard 60 used with ceiling 61 facing up.

[0430] For another example, FIG. 5A illustrates guard 60 used having base 62 facing up, and a shoe having a pair of opposite hooks. All Fastening Methods and all Unfastening Methods above can be applied to lace sections 71, 72, 73, and 74 (for example, applying Fastening Method 2, lace section 73 is hooked into gap 70B and on guard 60 in the direction of arrow 88, and lace section 74 is hooked into gap 70A and on guard 60 in the opposite direction from that of arrow

[0431] For another example, FIG. 5B illustrates guard 60 having base 62 facing up, and a shoe having opposite lace receivers which are all holes. A unique fastening-unfastening system only needs to be assembled once

[0432] to preset at least one fastening tension of lace 69,

[0433] to preset at least one unfastening tension of lace 69,

[0434] to attach lace 69 to the shoe and to guard 60, and

[0435] to hide and guard knot 86 and tails in recess 64A:

[0436] a) To put the shoe on a foot: a) the foot is inserted into the shoe, and b) Fastening Methods 2 or 3 above, can be applied to lace, sections 73 and 74 (for example, hooking lace sections 73 and 74 into fastening gaps 70B and 70A, respectively, in the direction of arrow 88 and in the opposite direction from that of arrow 88, respectively, and on guard 60 (FTC;. 5B results in FIG. 5C);

[0437] b) To take the shoe off the foot: a) Unfastening Method 1 above can be applied to lace sections 73 and 74 (for example unhooking lace sections 73 and 74 from guard 60 and b) the foot is pulled out of the shoe.

[0438] For another example, FIG. 6A illustrates guard 60 used with ceiling 61 facing up and a shoe having opposite lace-receivers which are all holes 90A. A unique fastening-unfastening system only needs to be assembled once

[0439] to preset at least one fastening tension of lace 69,

[0440] to preset at least one unfastening tension of lace 69,

[0441] to attach lace 69 to the shoe and to guard 60 and

[0442] to hide and guard knot 86 and tails in recess 64A:

[0443] a) To put the shoe on a foot: a) the foot is inserted into the shoe, and b) Fastening Methods 2 or 3 above can be applied to lace sections 73 and 74 (for example, hooking lace sections 73 and 74 into fastening gaps 70B and 70A, respectively, and on guard 60);

[0444] b) To take the shoe off the foot: a) Unfastening Method 1 above can be applied to lace sections 73 and 74 (for example, unhooking lace sections 73 and 74 from guard 60), and b) the foot is pulled out of the shoe.

[0445] 3) The cross-section of a lace can be smaller than, equal to, or bigger than that of any of opposite lace-receivers and vice versa

[0446] For example, FIG. 6B illustrate a shoe having opposite lace-receivers which are all holes 90A cut into flaps 77 and 78. The cross-section of each of holes 90A is smaller than that of lace 69. A unique fastening-unfastening system only needs to be assembled once

[0447] to preset at least one fastening tension of lace 69,

[0448] to preset at least one unfastening tension of lace 69,

[0449] to attach lace 69 to the shoe and to guard 60, and

[0450] to hide and guard knot 86 and tails in recess 64A:

[0451] a) To put the shoe on a foot: a) the foot is inserted into the shoe, and b) Fastening Methods 2 or 3 above can be applied to lace sections 73 and 74 (for example, hooking lace sections 73 and 74 into fastening gaps 70B and 70A, respectively, and on guard 60);

[0452] b) To take the shoe off the foot: a) Unfastening Method 1 above can be applied to lace sections 73 and 74 (for example, unhooking lace sections 73 and 74 from guard 60), and b) the foot is pulled out of the shoe.

[0453] For another example, FIG. 6C illustrates a shoe having opposite lace-receivers which are all fabric loops 90B sewn to flaps 77 and 78. The cross-section of each opening of fabric loops 90B is bigger than that of lace 69. A unique fastening-unfastening system only needs to be assembled once

[0454] to preset at least one fastening tension of lace 69,

[0455] to preset at least on e unfastening tension of lace, 69,

[0456] to attach lace 69 to the shoe and to guard 60, and

[0457] to hide and guard knot 86 and tails in recess 64A:

[0458] a) To put the shoe on a foot: a) the foot is inserted into the shoe, and b) Fastening Methods 2 or 3 above can be applied to lace sections 73 and 74 (for example, hooking lace sections 73 and 74 into fastening gaps 70B and 70A, respectively, and on guard 60);

[0459] b) To take the shoe off the foot: a) Unfastening Method 1 above can be applied to lace sections 73 and 74 (for example, unhooking lace sections 73 and 74 from guard 60), and b) the foot is pulled out of the shoe.

[0460] 4) The cross-section of a lace can have any shape and size.

[0461] For example, the cross-section of a shoe lace can be generally round, generally oval, generally rectangular, generally square, etc.

[0462] 5) The material, used to make a lace, can be elastic, non-elastic, transparent, flexible, resilient, fluorescent, reflecting, colored glittered, scented, glow-in-dark, fabric, cotton, leather, vinyl, nylon, rubber, plastic, thread, the like, other material, etc., or a combination of at least any two of these above materials.

[0463] Further, if desired, the lace can be covered with a material such as elastic, non-elastic, transparent, flexible, resilient, fluorescent, reflecting, colored, glittered, scented, glow-in-the-dark, fabric, cotton, leather, vinyl, nylon, rubber, plastic, thread, the like, other material, etc., or a combination of at least any two of these above materials.

[0464] 6) A footwear can be laced in a manner so that each lace section of a lace extends:

[0465] a) from one lace-receiver of one of opposite flaps to another lace-receiver of the same one of the opposite flaps or to another lace section of the lace; or

[0466] b) from one lace-receiver of one of the opposite flaps to one lace-receiver of another one of the opposite flaps.

[0467] For example, FIG. 6C illustrates lace section 71, which extends from one of fabric loops 90B, which are sewn to flap 77, to lace section 72.

[0468] For example, FIG. 6C illustrates lace section 73, which extends from one of fabric loops 90B, sewn to flap 77, to another one of fabric loops 90B, also sewn to flap 77.

[0469] For another example, FIGS. 7 and 8 illustrate lace sections 91A, 91B, 91C, 91D, and 91E, each of which extends from one lace-receiver of one of the opposite flaps to one lace-receiver of another one of the opposite flaps.

[0470] For another example, FIGS. 7 and 8 illustrate lace sections 92A, 92B, 92C, and 92D, each of which extends from one lace-receiver of one of the opposite flaps to another lace-receiver of the same one of the opposite flaps.

[0471] 7) Each portion of a guard can have any shape and size. The cross-section of each portion of a guard can have any shape and size

[0472] 8) A guard can comprise a predetermined ceiling or base of any shape and size. The ceiling or base can have at least one predetermine opening of any shape and size. Each of the at least one opening can be disposed at any portion of the ceiling or base. One or each of the lace ends of a lace can be threaded through at least one of the at least one opening.

[0473] For example FIGS. 9A, 9B, 9C, 9D, and 9E illustrate guards 40, 41, 42, 43, and 44, each of which comprises a flat base having at least one opening. One or each of lace ends 67 and 68 can be threaded through at least one of the at least one opening.

[0474] 9) Each portion of a lace-end coupling can have any shape and size. The cross-section of each portion of a lace-end coupling can have any shape and size. A lace-end coupling can be:

[0475] a) separate from a guard or a footwear,

[0476] b) partially or fully, attached to or integrated to any portion of a guard or a footwear so that the lace-end coupling and the guard or the footwear are one single unit, or

[0477] c) eliminated from a unique fastening-unfastening system.

[0478] For example, lace ends 67 and 68 can be attached to a guard by molding process, by thermal process, or otherwise attached to a guard, to eliminate using a lace-end coupling.

[0479] For another example, FIG. 10 illustrates a guard 45 and a lace-end coupling 45A. Lace-end coupling 45A acts as a clamp for lace ends 67 and 68 to be inserted therein and to be clamped therein. Lace-end coupling 45A can be either molded to, welded to, glued to, or otherwise attached to or integrated to guard 45.

[0480] For another example, FIG. 11 illustrates a guard 46 comprising a lid and a cup hinged together along a section of their edges. The lid has a lace-end coupling named ridges 50 molded thereto and the cup has opening 49 for lace ends 67 and 68 to be threaded therethrough, The lid and cup have snap-locking device capable of locking the lid and cup together when the lid and cup are snap locked together so that ridges 50 will press lock lace ends 67 and 68 securely inside guard 46.

[0481] 10) The material used to make a lace-end coupling can be elastic, non-elastic, transparent, flexible, resilient, rigid, semi rigid, fluorescent, reflecting, colored, glittered, scented, glow-in-the-dark, plastic, various plasticized material, metalic material, steel, bronze, zinc, copper, iron, alloy, thread, fabric, cotton, leather, vinyl, nylon, rubber, thread, tin, zinc, the like, other material, or a combination of at least any two of these above materials.

[0482] 11) A guard can comprise a ceiling, a base, or a wall of any shape and size; can comprises a ceiling or base of any shape and size and a wall of any shape and size; or can comprise a ceiling of any shape and size, a base of any shape and size, and a wall of any shape and size.

[0483] For example, FIGS. 12A and 12B illustrate guards 47 and 48, respectively. Guards 47 and 48 each is formed as a cup. Each cup comprises a wall and a base integrated to each other. Guard 47 has an opening in its base, a recess, and an opening at the edge portion of the wall. The opening at the edge portion of the wall communicates with the recess. Guard 48 has three openings in its base, a recess, and an opening at the edge portion of the wall. The opening at the edge portion of the wall communicates with the recess.

[0484] 12) At least one relief can be attached to or integrated to any portion of a guard, in one of the following manners.

[0485] a) The at least one relief partially or fully covers a guard;

[0486] b) The at least one relief comprises a part of or an entirety of a guard.

[0487] For example, FHG. 13A illustrates a guard whose form is a heart.

[0488] For another example, FIG. 13B illustrates a guard whose form is a flower. Plus, the guard has a relief of a smiling face integrated thereto. The smiling face has two concave eyes, a convex nose, and a concave mouth.

[0489] 13) A lace-end coupling can comprise the lace ends of a lace so that:

[0490] a) the lace ends are tied together so that they are coupled with each other, or

[0491] b) the lace ends are tied separately so that each of them is coupled with a guard.

[0492] For example, a lace-end coupling can comprise at least one knot and tails, at least one bow-knot and tails, or a combination of the at least one knot and tails and the at least one bow-knot and tails.

[0493] For Another Example

[0494] a) The lace ends of a lace are tied separately (for example, FIGS. 14A or 14B); or

[0495] b) The lace ends of a lace are tied together (for example, FIGS. 2 or 14C).

[0496] 14) A lace-end coupling:

[0497] a) can permanently or temporarily couple the lace ends of a lace with each other; or

[0498] b) can permanently or temporarily couple the lace ends of a lace with guards.

[0499] For example, a lace-end coupling can couple the lace ends of a lace with each other temporarily:

[0500] a) to preset at least one fastening tension of the lace, and

[0501] b) t preset at least one unfastening tension of the lace.

[0502] If desired, first the lace ends can be uncoupled from each other, then the lace ends can be adjusted, and then the lace ends can be re coupled with each other:

[0503] a) to preset at least one new fastening tension of the lace, and

[0504] b) to preset at least one new, unfastening tension of the lace.

[0505] 15) A guard can have at least one predetermined recess. The at least one recess can be disposed at any portion guard.

[0506] 16) A guard can have at least one predetermined opening. The at least one opening can be disposed at any portion of the guard

[0507] 17) A part of or an entirety of a guard:

[0508] a) can be separate from a footwear so that the guard or the part of the guard and the footwear are two separate units;

[0509] b) can be partially or fully attached to any portion of a footwear so that the guard or the part of the guard and that portion of the footwear are a single unit; or

[0510] c) can be partially or fully integrated to any portion of a footwear so that the guard or the part of the guard and that portion of the footwear are a single unit.

[0511] d) can comprise a part of or an entirety of any portion of a footwear.

[0512] For example, FIGS. 15A and 15B illustrate a guard comprising a hiding-guarding device 51 and a lace-section coupling. The lace section coupling comprises two opposite hooks or the like attached to opposite flaps 77 and 78, respectively, by attaching devices (an attaching device, for example, can be a thread, velcro, snap lock, rivet, the like, etc.). Hiding guarding device 51 is made of elastic material. Hiding-guarding device 51 and tongue 80 are attached to each other, along the edge portions of the top and sides of hiding-guarding device 54, by using an attaching device named a thread 52 so that:

[0513] a) hiding-guarding device 51 and tongue 80 are a single unit, and

[0514] b) a resilient opening 53A and a resilient recess 53B between hiding-guarding device 51 and tongue 80, which are a single unit, are created.

[0515] Opening 53A is at the bottom of hiding-guarding device 51 and communicates with recess 53B. Shoe 82 is laced with lace 69. Lace ends 67 and 68 are tied together into a knot 86 and tails.

[0516] Opening 53A is capable of being stretched open big enough to allow knot 86 and tails to be threaded therethrough and into recess and is capable of returning to its original form to secure knot 86 and tails in recess 53B so that, hiding-guarding device 51 and tongue 80, which are a single unit, hide and guard knot 86 and tails in recess 53B. Equivalent to the first example, Fastening Methods 1, 4, 5, and 6 can be applied to lace sections 71 and 72.

[0517] Consequently, when the unique fastening-unfastening system fastens shoe 82 onto a foot, the unique fastening-unfastening system fastens lace 69 to shoe 82, therefore fastens knot 86 and tails to shoe 82, therefore fastens hiding-guarding device 51 and tongue 80, which are a single unit, to shoe 82, and therefore prevents hiding-guarding device 51 and tongue 80, as a single unit, from moving. Therefore, knot 86 and tails also work as a tongue stopper.

[0518] For another example, FIG. 15C illustrates a guard comprising a hiding-guarding device 54 and a lace-section coupling. The lace-section coupling comprises two opposite hooks or the like attached to flaps 77 and 78, respectively, by attaching devices (an attaching device, for example, can be a thread, velcro, snap lock, rivet, the like, etc.). Hiding guarding device 54 is made of elastic material and has a resilient opening. Hiding guarding device 54 and tongue 80 are attached to each other, along the whole edge portions of hiding-guarding device 54, by using an attaching device named a thread so that:

[0519] a) hiding-guarding device 54 and tongue 80 are a single unit, and

[0520] b) a resilient recess between hiding-guarding device 54 and tongue 80, which are a single unit, is created.

[0521] The opening communicates with the recess. Shoe 82 is laced with lace 69. Lace ends 67 and 68 are tied together into a knot 86 and tails.

[0522] The opening is capable of being stretched open big enough to allow knot 86 and tails to be threaded therethrough and into the recess, and is capable of returning to its original form to secure knot 86 and tails in the recess so that, hiding-guarding device 54 and tongue 80, which are a single unit, hide and guard knot 86 and tails in the recess. Equivalent to the first example, Fastening Methods 1, 4, 5, and 6 can be applied to lace sections 71 and 72.

[0523] Consequently, when the unique fastening-unfastening system fastens shoe 82 onto a foot, the unique fastening-unfastening system fastens lace 69 to shoe 82, therefore fastens knot 86 and tails to shoe 82, therefore fastens hiding-guarding device 54 and tongue 80; which are a single unit, to shoe 82, and therefore prevents hiding-guarding device 54 and tongue 80, which are a single unit, from moving. Therefore, knot 86 and tails also work as a tongue stopper.

[0524] For another example, FIG. 15D illustrates a guard comprising a hiding-guarding device 57 and a lace-section coupling. The lace-section coupling comprises two opposite hooks or the like attached to flaps 77 and 78, respectively, by attaching devices (an attaching device, for example, can be a thread, velcro, snap lock, rivet, the like, etc.). Hiding guarding device 57 is made of elastic material and has a resilient opening 55. Hiding guarding device 57 and tongue 80 are integrated to each other so that:

[0525] a) hiding-guarding device 57 and tongue 80 are a single unit, and

[0526] b) a resilient recess 56 inside hiding-guarding device 57 and tongue 80, which are a single unit, is created.

[0527] Opening 55 communicates with recess 56. Shoe 82 is laced with lace 69. Lace ends 67 and 68 are tied together into a knot 86 and tails.

[0528] Opening 55 is capable of being stretched open big enough to allow knot 86 and tails to be threaded therethrough and into recess 56, and is capable of returning to its original form to secure knot 86 and tails in recess 56 so that, hiding guarding device 57 and tongue 80, which are a single unit, hide and guard knot 86 and tails in recess 56. Equivalent to the first example, Fastening Methods 1, 4, 5, and 6 can be applied to lace sections 71 and 72.

[0529] Consequently, when the unique fastening-unfastening system fastens shoe 82 onto a foot, the unique fastening-unfastening system fastens lace 69 to shoe 82, therefore fastens knot 86 and tails to shoe 82, therefore fastens hiding-guarding device 57 and tongue 80, which are a single unit, to shoe 82, and therefore prevents hiding-guarding device 57 and tongue 80, which are a single unit, from moving. Therefore, knot 86 and tails also work as a tongue stopper.

[0530] If desired, hiding-guarding device 57 and tongue 80, which are a single unit, can further comprise a padding encased therein so that, recess 56 can be cut into the padding.

[0531] 18) The following are equivalent Fastening Methods equivalent to Fastening Methods 2 and 3, and equivalent Unfastening, Method equivalent to Unfastening Method 1:

[0532] For another example, FIGS. 16A, 16B, and 16 illustrate an equivalent guard 30 equivalent to guard 60. Guard 30 comprises a cup. The cup has a recess inside the cup, two opposite openings on two opposite sides thereof, and an opening in the bottom of the cup. All three openings communicate with the recess. A shoe is laced with lace 69. Each of the opposite openings is for one of lace ends 67 and 68 to be threaded therethrough, into the recess, and through the opening in the bottom to be out of guard 30. Lace ends 67 and 68:

[0533] a) are tied together so that lace ends 67 and 68 are coupled with each other

[0534] to preset at least one predetermined fastening tension of lace 69,

[0535] to preset at least one predetermined unfastening tension of lace 69,

[0536] to attach lace 69 to the shoe and to guard 30, and

[0537] b) are threaded back through the opening in the bottom and into the recess

[0538] to be hidden and guarded therein.

[0539] Equivalent to Fastening Methods 2 and 3, lace sections 73 and 74 can be hooked into or twisted and hooked into opposite fastening gaps 70D and 70C, respectively, in the opposite directions of opposite arrows 58A and 58B, respectively, and on guard 30. Equivalent to Unfastening Method 1, lace sections 73 and 74 can be unhooked from guard 30.

[0540] 19) A guard can comprise a hiding-guarding device and a lac section coupling. The hiding-guarding device and the lace section coupling can be made integrally or separately:

[0541] a) The hiding-guarding device is for hiding and guarding:

[0542] a part of or an entirety of first and second lace ends of the lace and/or

[0543] a part of or an entirety of at least one lace-end coupling.

[0544] b) The lace section coupling is:

[0545] for quickly coupling opposite lace sections of a lace, and

[0546] for quickly uncoupling opposite lace sections of a lace.

[0547] For example, (please refer to all four examples of section 17) above).

[0548] For another example, FIGS. 16D, 16E, and 16F illustrate equivalent guards, each of which is equivalent to guar 60. Each of these equivalent guards comprises a biding guarding device and a lace-section coupling integrated to each other. The hiding-guarding device comprises a cup. The cup has a recess inside the cup, two opposite openings on two opposite sides thereof, and an opening in the bottom of the cup. All three openings communicate with the recess. The lace section coupling comprises four hooks. In FIGS. 16D and 16E, the tip 30B of each of the four hooks is bent.

[0549] For another example, FIGS. 16G, 16H, and 16I illustrate equivalent guards, each of which is equivalent to guar 60. Each of these equivalent guards comprises a hiding-guarding device and a lace-section coupling integrated to each other. The hiding-guarding device comprises a cup. The cup has a recess inside the cup, two opposite openings on two opposite sides thereof, and an opening in the bottom of the cup. All three openings communicate with the recess. The lace-section coupling comprises double hooks. In FIG. 16I, the tip 30A of each of the double hooks is bent.

[0550] Equivalent Fastening Methods equivalent to Fastening Methods 2 and 3, and equivalent Unfastening Method equivalent to Unfastening Method 1 can be applied to each of the equivalent guards in FIGS. 16D, 16E, 16F, 16G, 16H, and 16I:

[0551] For example, FIG. 16I illustrate an equivalent guard equivalent to guard 60. The equivalent guard comprises a hiding guarding device and a lace-section coupling integrated to each other. The hiding-guarding device comprises a cup. The cup has a recess inside the cup, two opposite openings on two opposite sides thereof, and an opening in the bottom of the cup. All three openings communicate with the recess. A shoe is laced with lace 69. Each of the opposite openings is for one of lace ends 67 and 68 to be threaded therethrough, into the recess, and through the opening in the bottom to be out of the cup. Lace ends 67 and 68:

[0552] a) are tied together so that lace ends 67 and 68 are coupled to preset at least one predetermined fastening tension of lace 69, to preset at least one predetermined unfastening tension of lace 69, to attach lace 69 to the shoe and to the equivalent guard, and

[0553] b) are threaded back through the opening in the bottom and into the recess to be hidden and guarded therein.

[0554] The lace-section coupling comprises the double hooks for coupling opposite lace sections 73 and 74. The tip 30A of each of the double hooks is bent for securing one of opposite lace sections 73 and 74 on each of the double hooks, when hooked thereon.

[0555] Equivalent to Fastening Methods 2 and 3, opposite lace sections 73 and 74 can be hooked on or twisted and hooked on the double hooks, respectively, so that the double hooks couple lace sections 73 and 74, and the two tips 30A secure opposite lace sections 73 and 74, respectively, on the double hooks, respectively. Equivalent to Unfastening Method 1, lace sections 73 and 74 can be unhooked from the double hooks, respectively.

[0556] 20) Each of predetermined opposite lace-receivers can be a hole, a ring, a loop, a hook, the like, other type, or a combination of at least any two of these above lace-receivers. Each of the opposite lace-receivers can be disposed at any portion of a footwear. Each of the opposite lace-receivers can be attached to a footwear by at least one attaching device, can be integrated to a footwear, or can be cut into a footwear.

[0557] 21) A unique fastening-unfastening system can comprise at least one lace section coupling. At east one of Fastening Methods and at least one of Unfastening Methods can be applied to each of the at least one lace section coupling.

[0558] For example, FIG. 17A illustrates the opposite flaps of a shoe having two lace section couplings, which are four hooks. Hooks 59G and 59H are on one flap, and hooks 59A and 59B are on the other flap. At least one of Fastening Methods and at least one of Unfastening Methods can be applied to at least one of hooks 59G and 59H and to at least one of hooks 59A and 59B.

[0559] For another example, FIG. 17B illustrates the opposite flaps of a shoe having two lace-section couplings, which are four hooks. Hooks 59C and 59D are on one flap and 59E and 59F are on another flap. At least one of Fastening Methods and at least one of Unfastening Methods can be applied to at least one of hooks 59C and 59D and to at least one of hooks 59E and 59F. Opposite lace sections 71A and 72A work similarly to opposite lace sections 71 and 72 in the first example of guard 60. Opposite lace sections 73 and 74 work similarly to opposite lace sections 73 and 74 in the first example of guard 60.

[0560] For another example, FIGS. 17C and 17D illustrate the opposite flaps of a shoe having three lace-section couplings, which are six hooks. These hooks work similarly to hooks 59G, 59H, 59A, and 59B in FIG. 17A above. Opposite lace sections 71A and 72A work similarly to opposite lace sections 71 and 72 in FIG. 17A above.

[0561] 22) The material, used to make one of opposite lace-receivers, is independent from material(s) used to make the rest of opposite lace-receivers, and can be selected from the group consisting of: elastic, non-elastic, transparent, flexible, resilient, rigid, semi rigid, fluorescent, reflecting, colored, glittered, scented, glow-in-the-dark, plastic, various plasticized material, metalic material, various metalic material, steel, bronze, zinc, copper, iron, alloy, various elastic material, various non-elastic material, fabric, thread, leather, vinyl, nylon, rubber, thread, the like, other material, and a combination of at least any two of these above materials.

[0562] 23) A part of or an entirety of a guard can be disposed at any predetermined location.

[0563] For example, FIG. 17B illustrates guard 60 disposed close to the ankle area of the shoe.

[0564] For another example, FIGS. 17C and 17E illustrate a hiding-guarding device which is hat 211. Hat 211 has two side openings, one bottom opening, and a recess. The hat is sewn close to the toe area of the shoe. Similarly to a cup described above, lace ends 67 and 68 are threaded into hat 211, tied together, and are hidden and guarded in hat 211.

[0565] For another example, FIG. 17D illustrates a hiding-guarding device which is hats 211A and 211B. Each of hats 211A and 211B has one side opening, one bottom opening, and a recess. Each hats 211A and 211B is sewn to one of the opposite of the shoe. Each of lace ends 67 and 68 is threaded into one of hats 211A and 211B, tied into a knot, and is hidden and guarded therein.

[0566] 24) A unique fastening-unfastening system can have at least one predetermined guard.

[0567] For example, FIG. 17D illustrates one guard comprising a hiding-guarding device which is hats 211A and 211B and three lace-section couplings which are six hooks.

[0568] For another example, FIGS. 17F, 17G, 17H, and 17I illustrate two guards 211C and 211D. Guards 211C And 211D together have a hiding-guarding device and a lace-section coupling The hiding-guarding device comprises two cups of two guards 211C and 211D, respectively. Each of the two cup has a side opening, a bottom opening, and a recess. The lace section coupling comprises two hooks 22 and 24, of guards 211C and 211D, respectively, integrated to the two cup, respectively. Guards 211C and 211D are sewn close to the top of the opposite flaps of a shoe, respectively. FIG. 17G illustrates guard 211C sewn between an upper side 109 and under side 110 of one of the opposite flaps of a shoe. The shoe is laced with lace 69. Each of lace ends 67 and 68 are threaded through one side opening, into one recess, and through one bottom opening. Each of lace ends 67 and 68 are tiled separately into a knot threaded back through one bottom opening, and into one recess:

[0569] to preset at least one fastening tension of lace 69,

[0570] to preset at least one unfastening tension of lace 69,

[0571] to attach lace 69 to the shoe and to guards 211C and 211D, and

[0572] to hide and guard lace ends 67 and 68 in guards 211C and 211D, respectively.

[0573] Equivalent to Fastening Methods 4 and 5 and Unfastening Method 2, lace sections 71 and 72 can be hooked on or twisted and hooked on hook 24 and 22, respectively, in the direction of arrow 23 and in the opposite direction from that of arrow 23, respectively.

[0574] 25) Equivalent Fastening Method and, Unfastening Method, equivalent to Fastening Method 2 and Unfastening Method 1, respectively, are as follows:

[0575] For example, FIGS. 18A, 18B, 18C, and 18D illustrate a guard 25 similar to guard 60 of the first example but having four openings through the base, one opening at the edges, and a recess 26. A shoe is laced with lace 69. Lace 69 is threaded through two of these four openings as illustrated in FIG. 18A. Each of lace ends 67 and 68 is threaded through one of other two of these four openings, into recess 26, and through the opening at the edges to be out of guard 25. Lace ends 67 and 68 are tied together, and inserted back through the opening at the edges and into recess 26:

[0576] to preset at least one fastening tension of lace 69,

[0577] to preset at least one unfastening tension of lace 69,

[0578] to attach lace 69 to the shoe and to guard 25, and

[0579] to hide and guard lace ends 67 and 68 in guard 25.

[0580] A Unique Flipping Method is as Follows

[0581] Guard 25 can simply be flipped over laterally, in the direction of arrows 27A and 27B, as illustrated in FIG. 18B, so that guard 25 lies completely under lace sections 71A, 72A, 71, and 72, as illustrated in FIG. 18C to fasten the shoe onto a foot and

[0582] a) to eliminate the needs for adjusting and tying lace ends 67 and 68,

[0583] b) to increase the tension of lace 69 to one of the at least one fastening tension,

[0584] c) to fasten guard 25 to the shoe, and

[0585] d) to keep hiding and guarding lace ends 67 and 68 in guard 25.

[0586] A Unique Back Flipping Method is as Follows

[0587] Guard 15 can simply be flipped back to its former position, to unfasten the shoe from the foot and

[0588] a) to eliminate the needs for untying and adjusting lace ends 67 and 68,

[0589] b) to decrease the tension of lace 69 to one of the at least one unfasteningtension,

[0590] c) to unfasten guard 25 from the shoe, and

[0591] d) to keep hiding and guarding lace ends 67 and 68 in guard 25.

[0592] 26) A guard can lie between, over, or under the opposite flaps of a shoe.

[0593] For example, guard 25 in FIG. 18C, which lies over the opposite flaps of the shoe, can be slid under the opposite flaps as illustrated in FIG. 18D.

[0594] 27) A unique fastening-unfastening system can have at least one predetermined guard and at least one predetermined lace section coupling.

[0595] For example, FIG. 19A illustrates a unique fastening-unfastening system having lace section couplings which are hooks, guard 60 (from FIG. 2), and guard 41 (from FIG. 9B). The unique fastening-unfastening system is assembled as illustrated so that lace ends 67 and 68 are tied together and hidden in guard 60. Guard 41 works similarly as guard 60. All 8 Fastening Methods and all two Unfastening Methods can be applied to guard 60, guard 41, and the hooks

[0596] For another example, FIG. 19B illustrates a guard 28A comprising a flat base having four openings. FIG. 19C illustrates a guard 28B comprising a flat base and a ridge extending outwards from the base and having two openings through the ridge. Guards 28A and 28B are equivalent to each other. The Flipping Method and Back Flipping Method described earlier can be applied to guards 28A and 28B.

[0597] For another example, FIG. 19D illustrates a unique fastening-unfastening system having a lace-section coupling which is hooks, a guard 60 (from FIG. 2), and a guard 28A (from FIG. 19B). The unique fastening-unfastening system is assembled so that lace ends 67 and 68 are tied together and hidden in guard 60. All 8 Fastening Methods and all two Unfastening

[0598] Methods can be applied to guard 60 and the hooks. The Flipping Method and Back Flipping Method above can be applied to guard 28A, for example, by flipping guard 28A over laterally, in the direction of arrow 29.

[0599] For another example, FIG. 19E illustrates a unique fastening-unfastening system having a lace-section coupling and a guard. The lace-section coupling comprises opposite hooks. The guard comprises a hiding-guarding device which is hats 211A and 211B (from FIG. 17D), and a lace section coupling 28B. The opposite hooks are for coupling and uncoupling opposite lace sections of a lace. Hats 211A and 211B and lace section coupling 28B together are equivalent to guard 60 of the first example, as follows:

[0600] a) hats 211A and 211B are for hiding and guarding a part of or an entirety of lace ends of a lace, and/or a part of or an entirety of at least one lace-end coupling; and

[0601] b) lace section coupling 28B is for coupling and uncoupling opposite lace sections.

[0602] Lace section coupling 28B comprises a ceiling, a base, and a wall. The wall partially connects the ceiling and the base together to define a fastening gap 29 therebetween. The wall has an opening therethrough. Hats 211A and 211B are sewn to the top of the opposite flaps of a shoe, respectively. The opposite hooks are sewn to the opposite flaps of the shoe, respectively, under hats 211A and 211B, respectively. The unique fastening-unfastening system is assembled so that the shoe is threaded with lace 69, lace-end 67 is threaded through hat 211A, tied into a knot and tail, and hidden and guarded therein; and lace-end 68 is threaded through the opening of the wall of lace section coupling 28B, threaded through hat 211B, tied into a knot and tail, and hidden and guarded therein:

[0603] to preset at least one fastening tension of lace 69,

[0604] to preset at least one unfastening tension of lace 69,

[0605] to attach lace 69 to the shoe and to hats 211A and 211B and lace section coupling 28B, and

[0606] to hide and guard the knots and tails inside hats 211A and 211B, respectively.

[0607] Equivalent to Fastening Methods, Equivalent Fastening Methods are as follows:

[0608] 1) Equivalent Fastening Method 1

[0609] pulling and coupling lace sections 73 and 74 to lengthen and interlock them (by hooking lace sections 73 and 74 on the opposite hooks, respectively).

[0610] 2) Equivalent Fastening Method 2

[0611] From the result of Equivalent Fastening Method 1, pulling and coupling lace sections 71 and 72 to lengthen and interlock them (by hooking lace section 71 into gap 29 and on lace section coupling 28B)

[0612] 3) Equivalent Fastening Method 3

[0613] applying Equivalent Fastening Method 2 and the step of twisting lace sections 71 and 72.

[0614] 4) Equivalent Fastening Method 4

[0615] applying Equivalent Fastening Method 1 and the step of twisting lace sections 73 and 74.

[0616] 5) Equivalent Fastening Method 5

[0617] From the result of Equivalent Fastening Method 4, pulling and coupling lace sections 71 and 72 to lengthen and interlock them (by hooking lace section 71 into gap 29 and on lace section coupling 28B).

[0618] 6) Equivalent Fastening Method 6

[0619] applying Equivalent Fastening Method 5 and the step of twisting lace sections 71 and 72.

[0620] Equivalent to Unfastening Methods, Equivalent Unfastening Methods are as follows:

[0621] 1) Equivalent Unfastening Method 1

[0622] uncoupling lace sections 71 and 72 to unlock and shorten them (by unhooking lace section 71 from lace section coupling 289)

[0623] 2) Equivalent Unfastening Method 1

[0624] uncoupling lace sections 73 and 74 to unlock and shorten them (by unhooking lace sections 73 and 74 from the opposite hooks, respectively).

[0625] 28) A predetermined tip of a hook can be bent. A predetermined preventing device can be added to a hook to prevent the hook from snagging.

[0626] For example, FIG. 20A illustrates a lace section coupling which is opposite two hooks 100. Each of two opposite hooks 100 has a fastening gap 101 and a bent tip 102 (similar to each hook in FIGS. 16D, 16E, and 16I). Further, each of two opposite hooks 100 has a preventing device 103 disposed adjacent thereto. Each of opposite hooks 100 and each of preventing devices 103 are sewn to one of the opposite flaps of a shoe. Each preventing device 103 comprises a hill portion Each fastening gap 101 is for at least one of the opposite lace sections of a lace to be hooked therein or to be twisted and hooked therein. Each bent tip 102 is for securing at least one of the opposite lace sections of a lace in each fastening gap 101 when hooked therein. Each preventing device 103 is for preventing one of two opposite hooks 100 from snagging. The cross-section of each fastening gap 101 can be smaller than, equal to, or bigger than the cross-section of a lace. Each of the opposite flaps also has a plurality of holes. Each of these holes is surrounded and reinforced by one grommet 107.

[0627] 29) A guard can, at the same time:

[0628] a) preset two independently fastening tensions of a lace, and

[0629] b) preset two independently unfastening tensions of a lace.

[0630] For example, FIG. 20B illustrates lace ends 67 and 68 and a lace section, from the opposite side from lace ends 67 and 68, threaded through guard 25. Lace ends 67 and 68 are tied together into a knot 108 and tails. The lace section from the opposite side is tied into a knot 104. Knot 108 and tails and 104 are threaded into the recess of guard 25 to hidden and guarded therein (similarly illustrated in FIGS.18A, 18B, 18C, and 18D). Therefore, this, at the same time:

[0631] a) presets first and second independent fastening tensions of lace 69 for the upper and lower lace portions 105 and 106, respectively, and

[0632] b) presets first and second independent unfastening tensions of lace 69 for the upper and lower lace portions 105 and 106, respectively.

[0633] Flipping Method, described earlier, can be applied to guard 25 to, at the same time:

[0634] a) independently fasten the upper part of shoe 82 to a foot, and

[0635] b) independently fasten the lower part of shoe 82 to the foot.

[0636] Back Flipping Method, described earlier, can be applied to guard 25 to, at the same time:

[0637] a) independently unfasten the upper part of shoe 82 from the foot, and

[0638] b) independently fasten the lower part of shoe 82 from the foot.

[0639] Therefore, a guard of the present application can also work similarly to the device in the U.S. Pat. No. 4,200,998 filed May 6, 1980. In addition, a guard of the present application also achieves all the advantages and capabilities aforementioned over the device in the U.S. Pat. No. 4,200,998.

[0640] For example, when using the device in the U.S. Pat. No. 4,200,998, to take a shoe off a foot, the four following steps have to be performed:

[0641] a) Unlocking the device to decrease the tension of only the lower portion of the shoe lace; (at this point, the foot can not be pulled out of the shoe unless the next two steps are performed);

[0642] b) Untying the lace ends of the shoe;

[0643] c) Adjusting the lace ends of the shoe to decrease the tension of only the upper portion of the shoe lace, and

[0644] d) Palling the foot out of the shoe.

[0645] 30) A material used to make a guard can be elastic, non-elastic, transparent, flexible, resilient, rigid, semi rigid, fluorescent, reflecting, colored, glittered, scented, glow-in-the-dark, plastic, various plasticized material, metalic material, various metalic material, steel, bronze, zinc, copper, iron, alloy, various elastic material, various non-elastic material, fabric, leather, vinyl, nylon, rubber, thread, tin, zinc, the like, other material, or a combination of at least any two of these above materials.

[0646] 31) A unique hooking unhooking system can be used with any type of footwear, any type of camping gears, any type of sport gears, etc., the like, or other type.

[0647] For example, a footwear can be any type of sneaker, any type of tennis shoe, any type of basketball shoe, any type of running or jogging shoe, any type of training shoe, any type of sports shoe, any type of gymnastic shoe, any type of boot, the like, other footwear type, etc.

[0648] 32) A guard can have at least one predetermined opening. Each of the at least one opening can be disposed at any portion of the guard. One or each of the lace ends of a lace can be threaded through at least one of the at least one opening.

[0649] 33) At least one predetermined element can be partially or fully attached to or integrated to a guard at any portion thereof.

[0650] For example, an electronic device, used to measure the number of miles a jogger ran or used to measure the rate of the jogger's heart beat, is integrated to a guard so that the electronic device and the guard are one single unit.

[0651] For another example, a design to decorate a guard can be printed on, painted on, stamped on, molded on, glued on, welded on, or inscribed on the guard, etc..

Conclusion

[0652] The present application applies for the unique fastening-unfastening systems and methods of the unique fastening-unfastening scope for footwear used with lace (lacing type footwear). The lace can be elastic or non-elastic.

[0653] The unique fastening-unfastening systems and methods of the present application teach away from all the prior arts heretofore. The unique fastening-unfastening systems and methods of the present application have many advantages over all the prior arts heretofore. Some of these advantages of the unique fastening-unfastening systems and methods of the present application are as follows .

[0654] 1) A unique fastening-unfastening system only needs to be assembled once together with a footwear, to perform a) and b) and/or c) and d):

[0655] a) to preset at least one predetermined fastening tension of the lace.

[0656] b) to preset at least one predetermined unfastening tension of the lace.

[0657] c) to attach the lace to the footwear and to at least one of at least one guard.

[0658] d) to hide and guard a part or the entirety of lace ends of the lace and/or at least one lace-end coupling inside one or two of the at least one of the at least one guard.

[0659] For Example

[0660] The at least one of the at feast one guard or the one or two guards can be separate from the tongue of the footwear, can be attached to or integrated to the tongue as part of the tongue, or can comprise the entire tongue.

[0661] After the assembly of the unique fastening-unfastening system together with the footwear, the unique fastening-unfastening system and the footwear can be applied to a foot as follows:

[0662] a) Every time the footwear is put on the foot.

[0663] Applying at least one of at least one Fastening Method to fasten the footwear onto the foot and to perform a) and b) and/or c) and d):

[0664] a) to eliminate the needs for adjusting and tying the opposite lace ends of the lace.

[0665] b) to adjust the tension of the lace to one of the at least one predetermined fastening tension of the lace.

[0666] c) to fasten the at least one (for example, the tongue) of the at least one guard to the footwear.

[0667] d) to hide and guard or to keep hiding and guarding the part or the entirety of the lace ends and/or the at least one lace-end coupling inside the one or two guards (for example, the tongue).

[0668] b) Every time the footwear is taken off the foot

[0669] Applying at least one of at least one Unfastening Method to unfasten the footwear from the foot and to perform a) and b) and/or c) and d):

[0670] a) to eliminate the needs for untying and adjusting the opposite lace ends of the lace.

[0671] b) to adjust the tension of the lace to one of the at least one predetermined unfastening tension of the lace.

[0672] c) to unfasten the at least one (for example, the tongue) of the at least one guard from the footwear.

[0673] d) to hide and guard or to keep hiding and guarding the part or the entirety of the face ends and/or the at least one lace-end coupling inside the one or two guards (for example, the tongue)

[0674] 2) A unique fastening-unfastening system can be adjuster after the assembly of the unique fastening-unfastening system together with a footwear:

[0675] a) to preset at least one new predetermined fastening tension of the lace, and

[0676] b) to preset at least one new predetermined unfastening tension of the lace.

[0677] After the adjustment of the unique fastening-unfastening system, the unique fastening-unfastening system and the footwear can be applied to a foot as follows:

[0678] a) Every time the footwear is put on the foot:

[0679] the unique fastening-unfastening system works similarly as described above.

[0680] b) Every time the footwear is taken off the foot:

[0681] the unique fastening-unfastening system works similarly as described above.

[0682] For Example

[0683] A lace is made of elastic material, a unique fastening-unfastening system can be assembled once together with a footwear so that a foot can feel comfortable when wearing the footwear, without any undue uncomfortable feelings and without any undue pain, which are caused by the footwear squeezing the foot.

[0684] When the lace is stretched and therefore loses its tension after the lace has been used for a while, the unique fastening-unfastening system can be adjusted:

[0685] a) to preset at least one new predetermined fastening tension of the lace, and

[0686] b) to preset at least one new predetermined unfastening tension of the lace.

[0687] After the adjustment of the unique fastening-unfastening system, the unique fastening-unfastening system and the footwear can be applied to the foot as follows:

[0688] a) Every time the footwear is put on the foot.

[0689] the unique fastening-unfastening system works similarly as described above.

[0690] b) Every time the footwear is taken off the foot.

[0691] the unique fastening-unfastening system works similarly as described above.

[0692] 3) A unique fastening-unfastening system is highly easy and quick to use, looks highly aesthetic, and is highly safe.

[0693] 4) A unique fastening-unfastening system eliminates the problem of a footwear's tongue which moves from side to side and/or around when the footwear moves, causing the problem of throwing the footwear out of balance.

[0694] 5) A unique fastening-unfastening system eliminates the needs for adjusting elongated first and second lace ends of a lace to lengthen them to increase the tension of the lace.

[0695] 6) A unique fastening-unfastening system eliminates the needs for adjusting elongated first and second lace ends of a lace to shorten them to decrease the tension of the lace.

[0696] 7) A unique fastening-unfastening system eliminates the needs for coupling elongated first and second lace ends of a lace with each other when a footwear is put on a foot.

[0697] 8) A unique fastening-unfastening system eliminates the needs for uncoupling elongated first and second lace ends of a lace from each other when a footwear is taken off a foot.

[0698] 9) A unique fastening-unfastening system eliminates the needs for tying elongated first and second lace ends of a lace together into elongated bow-knot and tails when a footwear is put on a foot.

[0699] 10) A unique fastening-unfastening system eliminates the needs for untying elongated bow-knot and tails of a lace into elongated first and second lace ends when a footwear is taken off a foot.

[0700] 11) A unique fastening-unfastening system eliminates exposing elongated bow-knot and tails, by hiding and guarding them inside, for example, the footwear's tongue, to eliminate the hazards of snagging, undoing, tripping, damage, and personal injury.

[0701] 12) A unique fastening-unfastening system eliminates exposing elongated first and second lace ends of a lace and at least one lace-end coupling, by hiding and guarding them inside, for example, the footwear's tongue, to eliminate the hazards of snagging, undoing, tripping, damage, and personal injury.

[0702] 13) A unique fastening-unfastening system eliminates using any additional, highly cumbersome, highly unsighted, and highly hazardous devices used to fasten elongated bow-knot and tails in place or used to fasten elongated first and second lace ends of a lace in place, to eliminate the hazards of snagging, undoing, tripping, damage, and personal injury.

[0703] 14) A unique fastening-unfastening system has no moving parts and is highly compact, highly safe, highly reliable, highly durable, highly simple, highly comfortable to wear, highly easy to be made, and therefore highly inexpensive. Therefore, it can be used for footwear of almost any size and for people of almost any age.

[0704] 15) A unique fastening-unfastening system applies interlocking methods to fasten the at least one of the at least one guard to the footwear and to fasten the footwear onto the foot. Therefore:

[0705] the harder the unfastening forces pull on the unique fastening-unfastening system to unfasten the at least one of the at least one guard from the footwear and to unfasten the footwear from the foot,

[0706] the more securely the unique fastening-unfastening system fastens the at least one of the at least one guard to the footwear and fastens the footwear onto the foot.

[0707] 16) A unique fastening-unfastening system is simple, and therefore can be operated easily by people of almost any age.

[0708] 17) A unique fastening-unfastening system needs only one finger to be operated A unique fastening-unfastening system, when fastening a footwear onto a foot, is capable of making itself look symmetric.

[0709] 18) When a unique fastening unfastening system fastens at least one guard or at least one of the at least one guard to a footwear and fastens the footwear onto a foot (with first and second lace ends of a lace and at least one lace-end coupling hidden and guarded inside, for example, the footwear's tongue), the unique fastening-unfastening system can lie completely flat on the footwear and can hug the footwear snugly. Therefore, the unique fastening-unfastening system looks highly aesthetic, is highly safe, and highly reduces the hazards of snagging, undoing, tripping, damage, and personal injury.

[0710] 19) By using a unique fastening-unfastening system, conventional, elongated bow-knot and tails, or the elongated first and second lace ends of a lace and at least one lace-end coupling can be partially or fully hidden and guarded inside, for example, the footwear's tongue.

[0711] Therefore, this partially or fully eliminates exposing the conventional, elongated bow-knot and tails, or the elongated first and second lace ends and the at least one lace-end coupling;

[0712] Therefore, the lace:

[0713] a) can have any degree of stiffness,

[0714] b) can have a cross-section of any shape and size,

[0715] c) can be made of elastic or non-elastic material or a combination thereof,

[0716] d) can have uniform or not uniform cross-section or a combination thereof, and

[0717] e) can be straight, bent, waved, or helical or a combination of at least any two thereof.

[0718] 20) At least one element of a unique fastening-unfastening system can partially or fully be ride of glow-in-the-dark material, fluorescent material, light-reflecting material, eye-catching material, or a combination of at least any two of these above materials so that, for example, a motorist can see the at least one element wore by a jogger at night, to avoid hitting the jogger. Therefore, the unique fastening-unfastening system can also serve as a safety system.

[0719] While only some embodiments, principles, operation modes, equivalents, permutations, variations, ramifications, combinations, etc. of the unique fastening-unfastening systems and methods of the present application have been illustrated and described in the foregoing drawings and descriptions, the scope of the unique fastening-unfastening systems and methods of the present application are not limited to those examples, but extend to a wide range of equivalents, permutations, variations, ramifications, combinations, embodiments, principles, operation modes, etc. of the unique fastening-unfastening systems and methods, some examples of which are as follows:

[0720] 1) Each element of a unique fastening-unfastening system can be made integrally or separately. Each element of a unique fastening-unfastening system can be disposed at any location.

[0721] For example, FIG. 20C illustrates an equivalent guard, equivalent to the guard in FIG. 16I. The equivalent guard comprises a hiding-guarding device and a lace section coupling, separate from each other (instead of being integrated to each other as in FIG. 16I). The lace section coupling comprises double hooks 122A being a wire, whose cross-section, for example, can be generally round, generally oval, generally rectangular, generally square, or any other shape. The tip 122B of each of double hooks 122A is bent for securing one of opposite lace sections 73 and 74 on each of double hooks 122A. The hiding-guarding device comprises a cup 121 having two side openings, one bottom opening, and a recess inside. The three openings communicate with the recess. Equivalent to the unique fastening-unfastening system in FIG. 16I, a unique fastening-unfastening system can be assembled so that:

[0722] a shoe is laced with lace 69;

[0723] lace section 73 extends from one lace-receiver of the first of the opposite flaps to another lace-receiver of the first of the opposite flaps;

[0724] lace section 74 extends from one lace-receiver of the second of the opposite flaps to another lace-receiver of the second of the opposite flaps;

[0725] each of lace ends 67 and 68 are threaded through one of the two side openings, into the recess, and through the bottom opening to be out of the cup. Theft lace ends 67 and 68 are tied together so that they are coupled, threaded back through the bottom opening and into the recess

[0726] to preset at least one fastening tension of lace 69,

[0727] to preset at least one unfastening tension of lace 69,

[0728] to attach lace 69 to the shoe and to cup 121, and

[0729] to hide and guard lace ends 67 and 68 inside cup 121.

[0730] Equivalent to Fastening Methods 2 and 3, lace sections 73 and 74 can be hooked on or twisted and hooked on double hooks 122A, respectively, so that the tip 122B of each of double hooks 122A secures one of opposite lace sections 73 and 74 on each of double hooks 122A.

[0731] Equivalent to Unfastening Method 1, lace sections 73 and 74 can be unhooked from double hooks 122A, respectively.

[0732] If desired, double hooks 122A and/or cup 121 can be attached to any portion(s) of the shoe (for example, the shoe's tongue) by an attaching device.

[0733] For another example, FIG. 20D illustrates an equivalent guard, equivalent to the guard in FIG. 19E. The equivalent guard comprises a hiding, guarding device and a lac section coupling. The lace section coupling (equivalent to lace section coupling 28B in FIG. 19E) comprises double hooks 122C, as follows:

[0734] a) the tip of the first of double hooks 122C is bent to narrow the gate of the first of double hooks 122C to secure lace section 73 on the first of double hooks 122C, when hooked thereon;

[0735] b) the tip of the second of double hooks 122C is bent to close the gate of the second of double hooks 122,C to create generally a hole for lace section 74 to be threaded therethrough, to attach lace 69 to double hooks 122C.

[0736] The hiding-guarding device (equivalent to the hiding-guarding device 57 in FIG. 15D) comprises a tongue of a shoe. The tongue has two stretchable openings 124A and 124B, and a recess. The recess comprises a recess top 125 and a recess bottom. Two openings 124A and 124B are disposed at predetermined locations, communicate with the recess which is inside the tongue, and are for lace 69 to be threaded therethrough to attach lace 69 to the tongue.

[0737] Equivalent to the unique fastening-unfastening system in FIG. 19E, a unique fastening-unfastening system can be assembled so that:

[0738] the shoe is laced with lace 69;

[0739] lace section 73 extends from one lace receiver of the first of the opposite flaps of the shoe, and extends to another lace-receiver of the first of the opposite flaps of the shoe;

[0740] lace section 74 extends from one lace-receiver of the second of the opposite flaps of the shoe, is threaded through the hole of the second of double hooks 122C and extends to another lace-receiver of the second of the opposite flaps of the shoe;

[0741] lace end 68 is threaded through opening 124B and then through opening 124A to be out of the tongue. Then, lace ends 67 and 68 are tied together so that they are coupled, threaded back through opening 124A and completely into recess top 125

[0742] to preset at least one fastening tension of lace 69,

[0743] to preset at least one unfastening tension of lace 69,

[0744] to attach lace 69 to the shoe and to the tongue and double hooks 122C, and

[0745] to hide and guard lace ends 67 and 68 inside the tongue.

[0746] Equivalent to Fastening Methods for the unique fastening-unfastening system in FIG. 19E:

[0747] lace section 73 can be hooked on the first of double hooks 122C, or

[0748] lace sections 73 and 74 can be twisted and lace section 73 can be hooked on the first of double hooks 122C.

[0749] Equivalent to Unfastening Method for the unique fastening-unfastening system in FIG. 19E: lace section 73 can be unhooked from the first of double hooks 122C.

[0750] Because lace 69 is attached to the tongue, therefore, when the unique fastening unfastening system fastens the shoe to a foot, it fastens lace 69 to the shoe, and therefore it fastens the tongue to the shoe; and

[0751] Because late ends 67 and 68 lie in recess top 125 and the rest of lace 69 lie over the recess bottom (not over lace ends 67 and 68), therefore, when a foot wears the shoe, the foot will feel as comfortable as when the foot conventionally wears the shoe with just lace 69 alone without the unique fastening-unfastening system.

[0752] For another example, FIG. 20E illustrates an equivalent guard, equivalent to the guard in FIG. 20D. The equivalent guard comprises a hiding-guarding device and a lace-section coupling. The lace section coupling (equivalent to the lace section coupling in FIG. 20D) comprises double hooks 129, as follows:

[0753] a) the tip 132 of the first of double hooks 129 is bent to narrow the gate of the first of double hooks 129 to secure lace section 73 on the first of double hooks 129, when hooked thereon;

[0754] b) the tip of the second of double hooks 129 is bent and integrated to the body of the second of double hooks 129 to create a hole 131 for lace section 74 to be threaded therethrough, to attach lace 69 to double hooks 129.

[0755] The hiding-guarding device (equivalent to the hiding-guarding device in FIG. 20D) comprises a tongue of a shoe. The tongue has top layer 126A, bottom layer 1269, and a padding 127. Top and bottom layers 126A and 126B are sewn together partially along their edge portions to create a seam along their edge portions, to encase padding 127, to define a recess between top layer 126A and padding 127, and to define two opposite stretchable openings 124C and 124D at the seam. The recess comprises a recess top 125 and a recess bottom. Two openings 124C and 124D communicate with the recess, and are for lace 69 to be threaded therethrough to attach lace 69 to the tongue.

[0756] Equivalent to the unique fastening-unfastening system in FIG. 20D, a unique fastening-unfastening system can be assembled so that:

[0757] the shoe is laced with lace 69;

[0758] lace section 73 extends from one lace-receiver of the first of the opposite flaps of the shoe, and extends to another lace-receiver of the first of the opposite flaps of the shoe,

[0759] lace section 74 extends from one lace-receiver of the second of the opposite flaps of the shoe, is threaded through hole 131 of the 4 and of double hooks 129, and extends to another lace-receiver of the second of the opposite flaps of the shoe;

[0760] lace end 67, as illustrated in FIGS. 20E and 20F, is threaded through opening 124C and then through opening 124D to be out of the tongue. Then, lace ends 67 and 68 are tied together so that they are coupled, threaded back through opening 124D and completely into recess top 125 between top layer 126A and padding 127

[0761] to preset at least one fastening tension of lace 69,

[0762] to preset at least one unfastening tension of lace 69,

[0763] to attach lace 69 to the shoe and to the tongue and double hooks 129, and

[0764] to hide and guard lace ends 67 and 68 inside the tongue.

[0765] Equivalent to Fastening Methods for the unique fastening-unfastening system in FIG. 20D: lace section 73 can be hooked on the first of double hooks 129, or lace sections 73 and 74 can be twisted and lace section 73 can be hooked on the first of double hooks 129.

[0766] Equivalent to Unfastening Method for the unique fastening-unfastening system in FIG. 20D: lace section 73 can be unhooked from the first of double hooks 129.

[0767] Because lace 69 is attached to the tongue, therefore, when the unique fastening-unfastening system fastens the shoe to a foot, it fastens lace 69 to the shoe, and therefore it fastens the tongue to the shoe; and

[0768] Because lace ends 67 and 68 lie in recess top 125 and the rest of lace 69 lie over the recess bottom (not over lace ends 67 and 68), therefore, when a foot wears the shoe, the foot will feel as comfortable as when the foot conventionally wears the shoe with just lace 69 alone without the unique fastening-unfastening system.

[0769] For another example, FIG. 20G illustrates an equivalent hiding-guarding device equivalent to the hiding-guarding which is a tongue in FIG. 20E. The equivalent hiding-guarding device comprises an equivalent tongue of a shoe having two predetermined equivalent openings equivalent to two openings 124C and 124D of the tongue in FIG. 20E. The equivalent tongue can be made of elastic or non-elastic material. The two equivalent openings are at the seam of the equivalent tongue. One of the two equivalent openings is big enough so that lace ends 67 and 68, after being tied together, can be threaded therethrough into the recess top of the equivalent tongue.

[0770] For another example, FIGS. 20H and 20I illustrate an equivalent hiding-guarding device equivalent to the hiding-guarding which is a tongue in FIG. 20E. The equivalent hiding-guarding device comprises an equivalent tongue of a shoe having two predetermined equivalent openings equivalent to two openings 124C and 124D of the tongue in FIG. 20E. The equivalent tongue can be made of elastic or non-elastic material. The two equivalent openings are at the bottom layer 126B of the equivalent tongue. One of the two equivalent openings is big enough so that lace ends 67 and 68, after being tied together, can be threaded therethrough into the recess top of the equivalent tongue.

[0771] For another example, FIG. 20J illustrates an equivalent hiding-guarding device equivalent to the hiding-guarding which is a tongue in FIG. 20E. The equivalent hiding-guarding device comprises an equivalent tongue of a shoe having three predetermined equivalent openings at bottom layer 126B (one on the left side, one on the right side, and one in the middle). The three equivalent openings combined are equivalent to two openings 124C and 124D of the tongue in FIG. 20E The middle opening is big enough so that lace ends 67 and 68, after being tied together, can be threaded therethrough into the recess top of the equivalent tongue, as follows:

[0772] Referring to FIG. 20K, the equivalent tongue also has a padding 127 inside. Padding 127 has a padding opening, which is aligned with the middle opening. Lace end 67 is threaded through the left opening, through between top layer 126A and padding 127, through the padding opening, and through the middle opening to be out of the tongue. Opposite to lace-end 67, lace end 68 is threaded through the right opening, through between top layer 126A and padding 127, through the padding opening, and through the middle opening to be out of the tongue. Lace ends 67 and 68 are tied together so that lace ends 67 and 68 are coupled. Then, lace ends 67 and 68 are threaded back through the middle opening, through the padding opening, and into the recess top between top layer 126A and padding 127 so that, lace ends 67 and 68 are completely hidden and guarded inside the recess top of the equivalent tongue.

[0773] For another example, FIG. 20L illustrates an equivalent hiding-guarding device equivalent to the hiding-guarding which is a tongue in FIG. 20J. The equivalent hiding-guarding device comprises an equivalent tongue of a shoe having three predetermined equivalent openings equivalent to the three openings of the tongue in FIG. 20J. The equivalent tongue can be made of elastic or non-elastic material. The left and right equivalent openings are disposed at the seam of the equivalent tongue. The middle equivalent opening is disposed between the left and right equivalent openings (for example, disposed at top layer 126A, at bottom layer 126B, at the top of the tongue, or at the seam at the top of the tongue).

[0774] For another example, FIGS. 20M and 20N each illustrates an equivalent hiding-guarding device equivalent to the hiding-guarding which is a tongue in FIG. 20L. The equivalent hiding-guarding device comprises an equivalent tongue of a shoe having three predetermined equivalent openings equivalent to the three openings of the tongue in FIG. 20L. The equivalent tongue can be made of elastic or non-elastic material. The left and right equivalent openings are disposed at the seam of the equivalent tongue. The middle equivalent opening is disposed between the left and right equivalent openings (for example, disposed at top layer 126A, at bottom layer 126B, at the top of the tongue, at the seam at the top of the tongue, at a seam 170A or 170B, respectively, created by a plurality of portions of bottom layer 126B, partially sewn together along their edge portions).

[0775] 2) A unique fastening-unfastening system can have no hiding-guarding device.

[0776] For example, FIG. 200 illustrates an equivalent unique fastening-unfastening system, which is equivalent to the unique fastening-unfastening system in FIG. 20E, and is without a hiding and guarding device to hide and guard lace ends 67 and 68, which are tied together into a bow-knot 130 and tails.

[0777] 3) A unique fastening-unfastening system can comprise a predetermined combination of any predetermined elements of the unique fastening-unfastening systems herein.

[0778] For example, FIG. 20E illustrates lace section coupling 129 made of steel. The thickness of lace-section coupling 129 can be less than one sixteenth of an inch ({fraction (1/16)}″); the width of lace-section coupling 129 can be less than one fourth of an inch (¼″); and the length of lace-section coupling 129 can be less than one half of an inch (½″).

[0779] For another example, an equivalent unique fastening-unfastening system is equivalent to the unique fastening-unfastening system in FIG. 20E, except that, lace section coupling 129 in FIG. 20E is replaced with lace section coupling 28A in FIG. 19B, so that, each of lace sections 73 and 74 is threaded through two of four holes of lace section coupling 28A. Equivalently, the Flipping and Back-Flipping Methods can be applied to lace-section coupling 28A.

[0780] For another example, FIG. 20P illustrates an equivalent unique fastening-unfastening system equivalent to the unique fastening-unfastening system in FIG. 20E, except that, lace section coupling 129 in FIG. 20E is replaced with guard 41 from FIG. 9B, capable of functioning as lace section coupling 129. Lace section 74 is threaded through two holes of lace section coupling 41 as illustrated in FIG. 20P. Equivalently, for example, lace sections 73 and 74 can be coupled, by hooking lace section 73 on lace section coupling 41, or by twisting lace sections 73 and 74 and hooking lace section 73 on lace section coupling 41.

[0781] For another example, FIG. 20Q illustrates an equivalent unique fastening-unfastening system equivalent to the unique fastening-unfastening system in FIG. 20E, except that, the tongue further comprises an inner layer 160. Each of the bottom and top edge portions 140 and 150 of inner layer 160 are attached to the inner surface of top layer 126A by an attaching device to define two opposite openings 124C and 124D at the seam, and to define a recess top 125 between inner layer 160 and top layer 126A. An attaching device can be:

[0782] a) permanent (for example, thread, glue, etc.); or

[0783] b) temporary (for example, velcro, snap lock, etc.).

[0784] Equivalently, after being tied together, lace ends 67 and 68 are threaded back through one of two opposite openings 124C and 124D into recess top 125, to be hidden and guarded therein. If desired, the attaching device, used to attach inner layer 160 to top layer 126A, can be Velcro which can also help securing lace ends 67 and 68 in recess top 125 further.

[0785] 4) Lace ends of a lace can be tied together or separately into:

[0786] a) at least one knot and tail(s),

[0787] b) at least one bow-knot and tail(s),

[0788] c) at least one half bow-knot and tail(s), or

[0789] d) a combination of at least any two of these above.

[0790] Lace ends of a lace can be tied together so that they interlock, and therefore the harder they are pulled, the more securely they interlock, Each of lace ends of a lace can be tied separately so that the harder each of the lace ends is pulled, the more securely each of the lace ends is tied.

[0791] For example, FIG. 2 illustrates lace ends 67 and 68 which can be tied together into a knot and tails.

[0792] For another example, FIG. 200 illustrates lace ends 67 and 68 which can be tied together into a bow-knot 130 and tails.

[0793] For another example, FIG. 20M illustrates lace ends 67 and 68 which can be tied together so that lace ends 67 and 68 interlock so that the harder lace ends 67 and 68 are pulled, the more securely lace ends 67 and 68 interlock.

[0794] For another example, FIG. 20N illustrates lace ends 67 and 68 which can be tied together so that lace ends 67 and 68 interlock so that the harder lace ends 67 and 68 are pulled, the more securely lace ends 67 and 68 interlock.

[0795] 5) After being assembled, a unique fastening-unfastening system can be adjusted to preset at least one new fastening tension and at least one new unfastening tension of a lace.

[0796] For example, two lace ends 67 and 68 in FIGS. 15D, 20D-20L, can be tied together into a knot to preset at least one fastening tension and at least one unfastening tension of lace 69. If desired, the knot can be untied, lace ends 67 and 68 can be adjusted, and lace ends 67 and 68 can be tied together into a knot to preset at least one new fastening tension and at least one new unfastening tension of lace 69.

[0797] 6) A lace section coupling of a guard is equivalent to a lace section coupling of opposite lace-receivers.

[0798] 7) A unique fastening-unfastening system can comprise a combination of elements, which are from at least one unique fastening-unfastening system herein.

[0799] 8) A unique fastening-unfastening method can comprise a combination of steps, which are from at least one unique fastening-unfastening method herein.

[0800] 9) Any portion of a guard can have any shape and size. The cross-section of any portion of a guard can have any shape and size.

[0801] 10) Each lace section can be hooked on or twisted at least once and hooked on a lace section coupling.

[0802] 11) A part of or an entirety of a unique fastening-unfastening system can partially or fully be made of glow-in-the-dark material, fluorescent material, light-reflecting material, eye-catching material, or the like so that the unique fastening-unfastening system also functions as a safety system.

[0803] 12) A unique fastening-unfastening system can have at least one hiding-guarding device. A unique fastening-unfastening system can have at least one lace-section coupling. Each lace-section coupling can couple at least one pair of opposite lace sections.

[0804] For example, FIG. 19E illustrates a unique fastening-unfastening system having a lace section coupling 28B, and a lace section coupling which comprises two opposite hooks.

[0805] For another example, FIG. 20T illustrates two lace section couplings 129A and 129B, each of which is identical to lace section coupling 129 in FIG. 20E. Equivalent to lace section coupling 129, each of lace section couplings 129A and 129B is for coupling opposite lace sections.

[0806] For another example, FIG. 20U illustrates a lace section coupling 129C which is equivalent to lace section couplings 129A and 129B combined. Lace section coupling 129C comprises lace-section couplings 129A and 129B and an integrating device 176 which integrates lace-section couplings 129A and 129B to each other. Lace-section coupling 129C functions the same way lace-section couplings 129A and 129B combined function.

[0807] For another example, FIG. 20V illustrates a lace section coupling 182 which is equivalent to lace-section coupling 129 in FIG. 20E. Lace-section coupling 182 comprises two coupling portions 161 and 162A, each of which has a hole at one end for one of lace sections 73 and 74 to be threaded therethrough, and has a hook at the other end. Two coupling portions 161 and 162A are for hooking on each other to couple opposite lace sections 73 and 74.

[0808] For another example, FIG. 20W illustrates a lace section coupling 181 which is equivalent to lace section coupling 182 in FIG. 20V. Lace section coupling 181 comprises two coupling portions 161 and 162B. Coupling portion 161 has a hole at one end for one of lace sections 73 and 74 to be threaded therethrough, and has a hook at the other end. Coupling portion 162B has a hole at one end for another one of lace sections 73 and 74 to be threaded therethrough, and has a hole at the other end for the hook of coupling portion 161 to be hooked therein, to couple coupling portions 161 and 162B to couple opposite lace sections 73 and 74.

[0809] For another example, FIG. 20X illustrates a lace section coupling 180 which is equivalent to lace section coupling 181 in FIG. 20W. Lace section coupling 180 comprises two coupling portions. One coupling portion has a recess 170 at one end with two ridges, two opposite holes 191 at the opposite sides, and two holes at the other end. Recess 170 communicates with two opposite holes 191 The two holes are for lace sections 73A and 73B to be threaded therethrough, respectively. Another coupling portion has a stabilizing bar 172 and two opposite hooks 171 on both sides of stabilizing bar 172 at one end, and two holes at the other end. The two holes are for lace sections 74A and 74B to be threaded therethrough, respectively. Stabilizing bar 172 and two opposite hooks 171 are for being inserted into recess 170 between the two ridges, in the direction of the arrow so that, two opposite hooks 171 snap lock into two opposite holes 191 to couple the two coupling portions to couple opposite lace sections 73A, 73B and 74A, 74B.

[0810] For another example, FIG. 20Y illustrates a lace-section coupling 190 which is equivalent to lace-section coupling 180 in FIG. 20X. Lace-section coupling 190 is similar to lace-section coupling 180, except that, there are three holes on each of the two coupling portions of lace-section coupling 190 for three lace sections from each flap of a shoe to be threaded therethrough, respectively. Similarly, one coupling portion is inserted into another coupling portion, in the direction of the arrow, to couple the two coupling portions to couple the opposite lace sections.

[0811] Unique advantageous uses are applied to lace-section couplings 180 and 190 as described above. In addition, each hole of lace-section couplings 180 and 190 is assigned to one lace section to be threaded therethrough. As a result, when the footwear moves, these holes prevent the opposite lace sections, respectively, from sliding back and forth, in relation to lace-section couplings 180 and 190, respectively. Therefore, the opposite lace sections hold down lace-section couplings 180 and 190, respectively, eliminating the hazards of snagging, personal injury, etc.

[0812] For another example, FIGS. 20X and 20Y couple two pairs and three pair of opposite lace sections, respectively.

[0813] For another example, FIG. 20E illustrates lace section coupling 129, which is equivalent to each of lace-section couplings 180 and 190, and can couple at least one pair of opposite lace sections (for example, lace-section coupling 129 can replace lace-section coupling 180 in FIG. 20X to couple the two pair of opposite lace sections 73A, 73B, 74A, and 74B.

[0814] For another example, FIG. 21A illustrates opposite flaps have opposite holes 231 and opposite hooks 232. The unique fastening-unfastening system in FIG. 21A is assembled similarly to that in FIG. 20E with lace ends 57 and 68 hidden and guarded inside the tongue of the shoe, except that lace 69 is not threaded through all of lace-receivers, similarly to that in FIGS. 17A, 17B, 17C, and 17D.

[0815] 13) Each element of the unique fastening-unfastening system can be made of elastic or non-elastic material.

[0816] For example, FIG. 21B illustrates a equivalent lace section coupling equivalent to lace-section coupling 129 in FIG. 20E. The equivalent lace-section coupling comprises a wire spring capable of stretching, shrinking, bending, twisting, etc.. Similarly, the wire spring has a hook at one end and a hole at the other end like lace-section coupling 129 in FIG. 20E.

[0817] 14) An equivalent Uncoupling Method, equivalent to Uncoupling Method 1, is as follow:

[0818] For example, FIG. 21A illustrates lace section coupling 129 coupling opposite lace sections 73 and 74. To uncouple lace sections 73 and 74, the hook at one end of lace-section coupling 129 is lifted away from lace section 73 (for example, in the direction of arrow 230) until lace section 73 slides out of the hook.

[0819] 15) A hiding-guarding device can comprise a tongue of a footwear. The tongue can have at least one padding or no padding.

[0820] 16) A hiding-guarding device can comprise a tongue of a footwear. The tongue can have at least one opening. At least one of the at least one opening is capable of stretching big enough or is big enough for lace ends of a lace and/or at least one lace-end coupling to be threaded therethrough. Each of the at least one opening can be disposed at any portion of the tongue. The tongue can be one single predetermined element or a combination of predetermined elements.

[0821] 17) A lace-section coupling can comprise at least one pair of opposite lace-receivers of a footwear. The at least one pair of opposite lace-receivers can be disposed at any portion of the footwear.

[0822] For example, FIG. 21C illustrates a equivalent unique fastening-unfastening system, equivalent to that in FIGS. 19E and 20E. Equivalently, the equivalent unique fastening-unfastening system has a lace-section coupling comprising a pair of opposite lace-receivers 233 equivalent to that in FIG. 19E for opposite lace sections to be hooked thereon. Equivalently, the equivalent unique fastening-unfastening system is assembled and has lace ends of a lace coupled by a lace-end coupling and hidden and guarded inside the tongue of a shoe as in FIG. 20E.

[0823] 18) Equivalent Fastening Method equivalent to Fastening Method is as follows:

[0824] For example, referring to FIG. 21C, each of the lace-receivers can be a hook or a hole, or the like (for example, the pair of opposite lace-receivers 233 can be replaced with two holes, respectively. The lace is made of elastic. The unique fastening-unfastening system is assembled

[0825] to preset at least one predetermined fastening tension of the lace,

[0826] to preset at least one predetermined unfastening tension of the lace;

[0827] to attach the lace to the lace-end coupling and to the tongue, and

[0828] to hide and guard the lace ends and the lace-end coupling inside the tongue.

[0829] After the assembly, to put the footwear on a foot or to take the footwear off a foot, the foot is inserted into the footwear or is pulled out of the footwear, respectively, to fasten or to unfasten the footwear, respectively, onto or from the foot, respectively, and:

[0830] to eliminate the needs for tying or untying the lace ends, respectively,

[0831] to adjust the lace tension to one of the at least one fastening or unfastening tension, respectively;

[0832] to fasten or unfasten the tongue, respectively, to or from the footwear, respectively, and

[0833] to keep hiding and guarding the lace ends and the lace-end coupling inside the tongue.

[0834] For another example, referring to FIG. 21C, each of the lace-receivers can be a hook or a hole, or the like (for example, the pair of opposite lace-receivers 233 can be replaced with two holes, respectively. The lace is made of non-elastic. The unique fastening-unfastening system is assembled, except that the lace ends are threaded through the tongue to be out of the tongue similarly as in FIG. 20J

[0835] to attach the lace to the tongue, and

[0836] to hide and guard a portion of the lace ends inside the tongue.

[0837] After the assembly, to put the footwear on a foot or to take the footwear off a foot, the lace ends are tied together and inserted into the tongue or pulled out of the tongue and untied, respectively, to fasten or to unfasten the footwear, respectively, onto or from the foot, respectively, and:

[0838] to fasten or unfasten the tongue, respectively, to or from the footwear, respectively, and

[0839] to hiding and guarding or keep hiding and guarding the entirety or the portion of the lace ends, respectively, inside the tongue.

[0840] 19) FIG. 21D illustrates a lace-end coupling 234 equivalent to lace-end coupling 46 in FIG. 11, except that, instead of having only one hole 49 as lace-end coupling 46 in FIG. 11, lace-end coupling 234 has two opposite holes for lace ends 67 and 68 to be threaded therethrough so that lace-end coupling 234 couples them.

[0841] 20) A unique fastening-unfastening system can be assembled so that at least one of opposite lace sections is engaged with a lace-section coupling (for example, hooked on or threaded through a lace-section coupling) before the unique fastening-unfastening system is operated to fasten or unfasten a footwear onto or from a foot, respectively.

[0842] For example, the unique fastening-unfastening system in FIG. 20D can be assembled so that both of opposite lace sections 73 and 74 are hooked on lace-section coupling 122C.

[0843] For another example, the unique fastening-unfastening system in FIG. 20E can be assembled so that one of opposite lace sections 73 and 74 are threaded through lace-section coupling 129.

[0844] For another example, the unique fastening-unfastening system in FIG. 20Q can be assembled so that both of opposite lace sections 73 and 74 are hooked on lace-section coupling 129.

[0845] All the prior arts heretofore do not have these unique advantageous uses and capabilities.

[0846] Also, it is apparent to those skilled in the art that, the unique fastening-unfastening systems and methods are capable of various and numerous variations, ramifications, equivalents, processes, structures, materials, colors, forms, functions, dimensions, operation modes, generalizations, permutations, manners, alternatives, extensions, rearrangements, reshapings, applications, reconfigurations, simplifications, additions, adaptations, modifications, substitutions, optimizations, combinations, improvements, uses, associations, coordinations, connections, and so forth:

[0847] a) of each step from any unique fastening-unfastening method herein, and

[0848] b) of each element from any unique fastening-unfastening system herein, without departing from the scope and spirit of the unique fastening-unfastening systems and methods of the present application. The scope and spirit of the unique fastening-unfastening systems and methods of the present application will be determined by the ensuing claims and their legal equivalents, rather than by the aforementioned exemplifications. 

I claim:
 1. A unique fastening-unfastening system for fastening a footwear onto a foot, and for unfastening said footwear from said foot, said footwear having first side, second side, first lace-receiving means, second lace-receiving means, and a tongue, said first side and said second side opposite to each other, said first lace-receiving means disposed on said first side, said second lace-receiving means disposed on said second side, said tongue having at least one opening and a plurality of surfaces, each of said at least one opening extending from one of said surfaces to another one of said surfaces, the unique fastening-unfastening system comprising said first lace-receiving means, said second lace-receiving means, lacing means, lace-end coupling means, hiding-guarding means, and lace-section-coupling means, each of said first lace-receiving means and said second lace-receiving means for said lacing means to be threaded therethrough or to be hooked thereon to attach said lacing means to said footwear, said lacing means for attaching together said footwear, said lace-end coupling means, said hiding-guarding means, and said lace-section coupling means, said lacing means having lace ends, at least one first lace section, and at least one second lace section, said footwear laced with said lacing means so that each of said at least one first lace section extending from one of said first lace-receiving means to another one of said first lace-receiving means or to one of said at least one second lace-section, and so that each of said at least one second lace-section extending from one of said second lace-receiving means to another one of said second lace-receiving means or to one of said at least one first lace-section, one or each of said lace ends threaded through at least one of said at least one opening, said lace-end-coupling means for coupling said lace ends to preset at least one predetermined fastening tension of said lacing means, to preset at least one predetermined unfastening tension of said lacing means, to attach said lacing means to said lace-end-coupling means, and to attach said lacing means to said tongue, said hiding-guarding means comprising said tongue, at least one portion of said lace ends and said lace-end-coupling means threaded through at least one of said at least one opening to be hidden and guarded inside said tongue, and said lace-section-coupling means, after said foot inserted into said footwear, for coupling said at least one first lace section and said at least one second lace section, to eliminate the needs for adjusting and tying said lace ends, to adjust the tension of said lacing means to one of said at least one fastening tension, to fasten said tongue to said footwear, to fasten said footwear onto said foot, and to keep hiding and guarding said at least one portion of said lace ends and said lace-end-coupling means inside said tongue, and before said foot pulled out of said footwear, for uncoupling said at least one first lace section and said at least one second lace section, to eliminate the needs for untying and adjusting said lace ends, to adjust the tension of said lacing means to one of said at least one unfastening tension, to unfasten said tongue from said footwear, to unfasten said footwear from said foot, and to keep hiding and guarding said at least one portion of said lace ends and said lace-end-coupling means inside said tongue.
 2. The unique fastening-unfastening system of claim 1, wherein, each of said first and second lace-receiving means selected from the group consisting of threaded-through means for said lacing means to be threaded therethrough, hooked-on means for said lacing means to be hooked thereon, and a combination of said threaded-through means and said hooked-on means.
 3. The unique fastening-unfastening system of claim 1, wherein, said lace-section coupling means comprising threaded-through means and hooked-on means, said threaded-through means integrated to said hooked on-means, wherein, said at least one first lace section threaded through said threaded-through means to attach said lacing means to said lace-section coupling means, said at least one first lace section twisted when said at least one second lace section twisted, and wherein, said at least one second lace section hooked or twisted and hooked on said hooked-on means, or unhooked from said hooked on-means, so that said threaded-through means and said hooked-on means combined coupling said at least one first and second lace sections, or uncoupling said at least one first and second lace sections, respectively.
 4. The unique fastening-unfastening system of claim 3, wherein, said hooked-on means having at least one tip, said at least one tip predeterminedly bent so that said at least one tip securing said at least one second lace section on said hooked-on means when hooked or twisted and hooked thereon, and allowing said at least one second lace section to be unhooked therefrom.
 5. The unique fastening-unfastening system of claim 3, further, said lace-section-coupling means comprising at least one extra first lace-receiving means disposed on said first side and at least one extra second lace-receiving means disposed on said second side, said at least one extra first and second lace-receiving means for said at least one first and second lace sections, respectively, to be hooked or twisted and hooked thereon, respectively, or to be unhooked therefrom, respectively, so that said at least one extra first and second lace-receiving means coupling said at least one first and second lace sections, or uncoupling said at least one first and second lace sections, respectively.
 6. The unique fastening-unfastening system of claim 5, wherein, said at least one extra first and second lace-receiving means having at least one first tip and at least one second tip, respectively, said at least one first and second tips predeterminedly bent so that said at least one first and second tips securing said at least one first and second lace sections, respectively, on said at least one extra first and second lace-receiving means, respectively, when hooked or twisted and hooked thereon, respectively, and allowing said at least one first and second lace sections, respectively, to be unhooked therefrom, respectively.
 7. The unique fastening-unfastening system of claim 1, wherein, said lace-section-coupling means comprising hooked-on means for said at least one first and second lace sections to be hooked or twisted and hooked thereon, or to be unhooked therefrom, so that said hooked-on means coupling said at least one first and second lace sections, or uncoupling said at least one first and second lace sections, respectively.
 8. The unique fastening-unfastening system of claim 1, wherein, said lace-section-coupling means comprising at least one extra first lace-receiving means disposed on said first side and at least one extra second lace-receiving means disposed on said second side, said at least one extra first and second lace-receiving means for said at least one first and second lace sections, respectively, to be hooked or twisted and hooked thereon, respectively, or to be unhooked therefrom, respectively, so that said at least one extra first and second lace-receiving means coupling said at least one first and second lace sections, or uncoupling said at least one first and second lace sections, respectively.
 9. The unique fastening-unfastening system of claim 8, wherein, said at least one extra first and second lace-receiving means having at least one first tip and at least one second tip, respectively, said at least one first and second tips predeterminedly bent so that said at least one first and second tips securing said at least one first and second lace sections, respectively, on said at least one extra first and second lace-receiving means, respectively, when hooked or twisted and hooked thereon, respectively, and allowing said at least one first and second lace sections, respectively, to be unhooked therefrom, respectively.
 10. The unique fastening-unfastening system of claim 1, wherein, said lace-end-coupling means able to uncouple said lace ends, said lace ends able to be adjusted, and said lace-end-coupling means able to re-couple said lace ends to adjust said at least one predetermined fastening tension to at least one new predetermined fastening tension, and to adjust said at least one predetermined unfastening tension to at least one new predetermined unfastening tension.
 11. The unique fastening-unfastening system of claim 1, wherein, said lace-end-coupling means comprising said lace ends tied together so that said lace ends coupled.
 12. The unique fastening-unfastening system of claim 1, further, comprising at least one extra element, each of said at least one extra element separate from, attached to, or integrated to any element of the unique fastening-unfastening system, each of said at least one extra element selected from the group consisting of: relief, design, printing, painting, stamping, inscription, and a combination of at least any two of these above.
 13. The unique fastening-unfastening system of claim 1, wherein, at least one element of the unique fastening-unfastening system partially or fully made of elastic material.
 14. The unique fastening-unfastening system of claim 1, wherein, at least one element of the unique fastening-unfastening system partially or fully made of non-elastic material.
 15. The unique fastening-unfastening system of claim 1, wherein, said at least one first and second lace sections twisted.
 16. A method for fastening a footwear onto a foot, and for unfastening said footwear from said foot, providing said foot, providing said footwear, said footwear having first side, second side, first lace-receiving means, second lace-receiving means, and a tongue, said first side and said second side opposite to each other, said first lace-receiving means disposed on said first side, said second lace-receiving means disposed on said second side, said tongue having at least one opening and a plurality of surfaces, each of said at least one opening extending from one of said surfaces to another one of said surfaces, providing a unique fastening-unfastening system, the unique fastening-unfastening system comprising said first lace-receiving means, said second lace-receiving means, lacing means, lace-end-coupling means, hiding-guarding means, and lace-section-coupling means, each of said first lace-receiving means and said second lace-receiving means for said lacing means to be threaded therethrough or to be hooked thereon to attach said lacing means to said footwear, said lacing means for attaching together said footwear, said lace-end-coupling means, said hiding-guarding means, and said lace-section-coupling means, said lacing means having lace ends, at least one first lace section, and at least one second lace section, said footwear laced with said lacing means so that each of said at least one first lace section extending from one of said first lace-receiving means to another one of said first lace-receiving means or to one of said at least one second lace section, and so that each of said at least one second lace section extending from one of said second lace-receiving means to another one of said second lace-receiving means or to one of said at least one first lace section, one or each of said lace ends threaded through at least one of said at least one opening, said lace-end-coupling means for coupling said lace ends to preset at least one predetermined fastening tension of said lacing means, to preset at least one predetermined unfastening tension of said lacing means, to attach said lacing means to said lace-end-coupling means, and to attach said lacing means to said tongue, said hiding-guarding means comprising said tongue, at least one portion of said lace ends and said lace-end-coupling means threaded through at least one of said at least one opening to be hidden and guarded inside said tongue, and said lace-section-coupling means, after said foot inserted into said footwear, for coupling said at least one first lace section and said at least one second lace section, to eliminate the needs for adjusting and tying said lace ends, to adjust the tension of said lacing means to one of said at least one fastening tension, to fasten said tongue to said footwear, to fasten said footwear onto said foot, and to keep hiding and guarding said at least one portion of said lace ends and said lace-end-coupling means inside said tongue, and before said foot pulled out of said footwear, for uncoupling said at least one first lace section and said at least one second lace section, to eliminate the needs for untying and adjusting said lace ends, to adjust the tension of said lacing means to one of said at least one unfastening tension, to unfasten said tongue from said footwear, to unfasten said footwear from said foot, and to keep hiding and guarding said at least one portion of said lace ends and said lace-end-coupling means inside said tongue, the method for fastening said footwear onto said foot comprising the steps of: inserting said foot into said footwear; pulling said at least one first lace section and said at least one second lace section; and coupling said at least one first lace section and said at least one second lace section to eliminate the needs for adjusting and tying said lace ends, to adjust the tension of said lacing means to one of said at least one fastening tension, to fasten said tongue to said footwear, to fasten said footwear onto said foot, and to keep hiding and guarding said at least one portion of said lace ends and said lace-end-coupling means inside said tongue.
 17. The method of claim 16, further, comprising the step of twisting said at least one first lace section and said at least one second lace-section.
 18. The method of claim 16, further, comprising the step of uncoupling said at least one first lace section and said at least one second lace section to eliminate the needs for untying and adjusting said lace ends, to adjust the tension of said lacing means to one of said at least one unfastening tension, to unfasten said tongue from said footwear, to unfasten said footwear from said foot, and to keep hiding and guarding said at least one portion of said lace ends and said lace-end-coupling means inside said tongue.
 19. A method for fastening a footwear onto a foot, and for unfastening said footwear from said foot, providing said foot, said foot having a toe end and a heel end, providing said footwear, said footwear having first side, second side, first lace-receiving means, second lace-receiving means, and a tongue, said first side and said second side opposite to each other, said first lace-receiving means disposed on said first side, said second lace-receiving means disposed on said second side, said tongue having at least one opening and a plurality of surfaces, each of said at least one opening extending from one of said surfaces to another one of said surfaces, providing a unique fastening-unfastening system, the unique fastening-unfastening system comprising said first lace-receiving means, said second lace-receiving means, lacing means, lace-end-coupling means, and hiding-guarding means, each of said first lace-receiving means and said second lace-receiving means for said lacing means to be threaded therethrough or to be hooked thereon to attach said lacing means to said footwear, said lacing means for attaching together said footwear, said lace-end-coupling means, and said hiding-guarding means, said lacing means made of at least one elastic material and having lace ends, said footwear laced with said lacing means one or each of said lace ends threaded through at least one of said at least one opening, said lace-end-coupling means for coupling said lace ends to preset at least one predetermined fastening tension of said lacing means, to preset at least one predetermined unfastening tension of said lacing means, to attach said lacing means to said lace-end-coupling means, and to attach said lacing means to said tongue, said hiding-guarding means comprising said tongue, at least one portion of said lace ends and said lace-end-coupling means threaded through at least one of said at least one opening to be hidden and guarded inside said tongue, the method for fastening said footwear onto said foot comprising the steps of: inserting said toe end into said footwear to stretch said lacing means; and inserting said heel end into said footwear to shrink said lacing means to eliminate the needs for adjusting and tying said lace ends, to adjust the tension of said lacing means to one of said at least one fastening tension, to fasten said tongue to said footwear, to fasten said footwear onto said foot, and to keep hiding and guarding said at least one portion of said lace ends and said lace-end-coupling means inside said tongue.
 20. The method of claim 19, further, comprising the steps of pulling said heel end out of said footwear to stretch said lacing means; and pulling said toe end out of said footwear to shrink said lacing means to eliminate the needs for untying and adjusting said lace ends, to adjust the tension of said lacing means to one of said at least one unfastening tension, to unfasten said tongue from said footwear, to unfasten said footwear from said foot, and to keep hiding and guarding said at least one portion of said lace ends and said lace-end-coupling means inside said tongue. 